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Google Maps API Family

FAQ

Getting Started

Understanding the Terms of Service

Usage limits

Using the Google Maps APIs

Google Maps API Services

Advertising on your Map

What are the Google Maps APIs?

The Google Maps APIs give developers several ways of embedding Google Maps into web pages, and allows for either simple use or extensive customization. There are now several API offerings:

Depending on your needs, you may find yourself using one or a combination of these APIs.

If you operate an enterprise or commercial website, you may also be interested in Google Maps API Premier.

What countries do the Google Maps APIs cover?

The Google Maps team is constantly pushing new map data out and increasing our international coverage. The following spreadsheet shows the latest coverage details. You can filter the spreadsheet with the drop downs at the top (e.g. see all countries with driving directions by selecting "Yes" from that drop down). Please note that data coverage can change if licensing agreements with the data providers change.

Check out the Map Coverage Details Spreadsheet.
Also see the Supported Languages Spreadsheet.

Can I put Google Maps on my site without using the Google Maps APIs?

Yes. Google Maps now offers the ability to embed the map that you're viewing into your website or blog, without any programming or use of the Google Maps APIs. More information is available here.

How do I deliver Maps applications on mobile devices?

The Google Maps JavaScript API V3 has been developed to cater to mobile devices, and is suitable for browser applications targeted at both the desktop and devices that include a web browser with a full JavaScript implementation, such as the Apple iPhone.

For applications targeted at devices not suitable for using the JavaScript API, the Static Maps API delivers map images in GIF, JPG, and PNG formats, including markers and polylines. Note that use of the Static Maps API outside of browser based applications requires that the map image be linked to Google Maps.

To incorporate maps in an Android application, use the Android Maps External Library.

To incorporate Maps in a native iPhone application, use the Apple iPhone Map Kit framework.

Which web browsers does the Google Maps JS API support?

The Google Maps JavaScript API supports the following web browsers:

Google Maps JavaScript API V3:

  • IE 7.0+ (Windows)
  • Firefox 3.0+ (Windows, Mac OS X, Linux)
  • Safari 4+ (Mac OS X, iOS)
  • Chrome (Windows, Mac OS X, Linux)
  • Android
  • BlackBerry 6
  • Dolfin 2.0+ (Samsung Bada)

Google Maps JavaScript API V2:

  • IE 6.0+ (Windows)
  • Firefox 2.0+ (Windows, Mac OS X, Linux)
  • Safari 3.1+ (Mac OS X, iOS)
  • Chrome (Windows)

Which tools and Flash players does the Google Maps API for Flash support?

The Google Maps API for Flash is supported for stable releases of Flash Player 9 from 9.0.151.0 onwards.

The development tools that are officially supported are Flex Builder 3, Adobe Flash CS3, and the Flex 3 SDK.

How do I start using the Google Maps API on my site?

See the Maps Javascript API documentation for examples and details.

How can I be notified when there are changes in the Google Maps APIs?

You should subscribe to the Google Geo Developers Blog for news updates across the various Google Geo developer offerings.

To be notified when there are changes that may affect your applications, such as new releases, please subscribe to the relevant notify Google Group for the API concerned:

What are the Terms of Service for the Google Maps API?

The Terms of Service for the Google Maps API are available at:

http://www.google.com/apis/maps/terms.html

The Terms of Service for Google Maps API Premier are available at:

https://support.google.com/enterprise/doc/gme/terms/maps_purchase_agreement.html

Does my site meet the Terms of Service for the Google Maps API?

The Maps API is available for all sites that are accessible to consumers without charge. You can use the Google Maps APIs on both commercial and non-profit websites as long as your site meets the Terms of Service.

However, there are some uses of the Google Maps APIs that we just don't want to see: maps that identify the places to buy illegal drugs in a city, for instance, or any other illegal activity. We also respect people's privacy, so the Google Maps APIs shouldn't be used to identify private information about individuals.

You should use your own counsel to determine whether your application complies with the Terms of Service before you develop and launch it. Google engineers can only offer technical assistance and are not qualified to offer legal advice. Google reserves the right to suspend or terminate your use of the service at any time, so please read the Terms of Service carefully.

If you operate an enterprise or commercial website, you may also be interested in Google Maps API Premier which has modified Terms of Service that may better suit your needs.

Can I access the Maps and Satellite images directly?

You may not access the maps or satellite images through any mechanism besides the Google Maps APIs (such as the creation of your own mapping API or the use of a bulk tile download script). Your application's access to the tiles will be blocked if it accesses them outside of the Google Maps APIs. See section 5.3 of the Google Terms of Use for more details.

Can I use the Google Maps API on a commercial website?

As long as your site is generally accessible to consumers without charge, you may use the Google Maps API. For example, if your website is supported by advertising, it likely falls within the Google Maps API Terms of Service. If you charge people to place information on your map (e.g. to list their homes for sale), but you display this information using the Google Maps API on a free part of your site, you'll also meet the Google Maps API Terms of Service.

However, not all commercial uses are allowed. For example, if your site meets any of the following criteria you must purchase the appropriate Google Maps API Premier license:

  • Your site is only available to paying customers.
  • Your site is only accessible within your company or on your intranet.
  • Your application relates to enterprise dispatch, fleet management, business asset tracking, or similar applications.

Remember, Google reserves the right to suspend or terminate your use of the Google Maps API at any time, so please ensure that you read the Terms of Service carefully.

Can I use the Google Maps APIs for tracking applications?

There is no restriction on displaying real-time data (tracking) with the Google Maps APIs provided that the application is publicly available without charge and otherwise complies with the Terms of Service. For internal-only applications, Google Maps API Premier must be used. See Section 10.9 of the Terms of Service for more information.

Can I use Google Maps in my non-Web application?

Yes, the Google Maps APIs can now be used in Desktop applications, provided that they adhere to the other restrictions of the Terms of Service. Note that in order for a desktop application to be deemed "publicly accessible", there must be a publicly accessible webpage from which it can be downloaded. See Section 7.1c of the Terms of Service for more information.

Can I use the Google Maps APIs on a site that is password protected?

Yes, you can, though you should consult the Terms of Service before using the Google Maps APIs on a password protected website. If consumers can easily sign up for a password without charge or if the purpose of the password protected map is to enhance the publicly available map (ie. administration), then your site is likely within the Terms of Service. If this is not the case, you will need to use Google Maps API Premier.

What information must I report to the Google Maps APIs?

Per Section 9.2 of the Terms of Service, developers must report whether their Maps API implementation uses a sensor to locate the user's device on the map. An example of a sensor is the Geolocation module in Gears, which provides a latitude/longitude for a user based on their WIFI/GPS/Cell ID information.

Information is available on reporting use of a sensor in each of the Maps APIs:

Can I use screen shots of a Google Maps API application in printed materials or offline media?

Use of Google Maps imagery in printed materials and offline media is subject to the Permission Guidelines published at:

http://www.google.com/permissions/geoguidelines.html

How can I opt out of including my content in Google search results?

We are no longer collecting this data. The use of the indexing parameter has been deprecated and has no effect. You no longer need to opt out explicitly, but we encourage you to remove this parameter at your earliest convenience.

To remove your page or site from search results, follow the instructions provided in our webmaster help center.

What information is sent to Google when I use the JavaScript Maps API?

When using the JavaScript Maps API, the following information is sent to Google:

  • Map size and location for retrieving map tiles and copyrights
  • Addresses for geocoding
  • Direction and Elevation requests
  • Locations around which to search for Places
  • KML when using KmlLayer (V3) or GGeoXml (V2)
Can I generate a map image using the Google Static Maps API which I store and serve from my website?

You may not store and serve copies of images generated using the Google Static Maps API from your website. All web pages that require static map images must link the src attribute of an HTML img tag or the CSS background-image attribute of an HTML div tag directly to the Google Static Maps API so that all map images are displayed within the HTML content of the web page and served directly to end users by Google.

What usage limits apply to the Maps API?

Web sites and applications using each of the Maps API may at no cost generate:

  1. up to 25,000 map loads per day for each API
  2. up to 2,500 map loads per day that have been modified using the Styled Maps feature

If your application exceeds these usage limits you must respond in one of the following ways in order to continue using the Maps API in your application:

  • Modify your Maps API application such that the number of map loads generated per day is below the usage limit for each API that your application uses;
  • Enroll for automated billing of excess map loads; or
  • Purchase a Maps API Premier license

Non-profits and applications deemed in the public interest (as determined by Google at its discretion) are not subject to these usage limits. For example, a disaster relief map is not subject to the usage limits even if it has been developed and/or is hosted by a commercial entity. In addition we recommend that eligible Non-profits apply for a Maps API Premier license through the Google Earth Outreach program. This provides a number of benefits, including the right to opt-out of advertising, higher quotas for Maps API web services, and technical support.

A precise definition of what constitutes a 'map load' is provided here. Details on pricing can be found here.

My site gets a lot of traffic. Can I use the Maps API?

Yes. However we recommend that you familiarise yourself with the Maps API usage limits and the daily limits for any of the Google Maps API Web Services that your application relies on.

You can greatly reduce the risk of being affected by the web service limits by using the relevant JavaScript or ActionScript class for the service concerned where appropriate. For more information, see the article on Geocoding Strategies.

What constitutes a 'map load' in the context of the usage limits that apply to the Maps API?

A single map load occurs when:

  1. the Maps JavaScript API (V2 or V3) is loaded by a web page or application;
  2. a SWF that loads the Maps API for Flash is loaded by a web page or application; or
  3. a single request is made for a map image from the Static Maps API.
  4. a single request is made for a panorama image from the Street View Image API.

The degree to which a user interacts with a map once it has been loaded has no impact on the usage limits.

No. Your maps will continue to function. However if your application qualifies for and consistently exceeds the published Maps API usage limits, you do not have a Maps API Premier license, and you do not enroll for online purchasing of excess map loads, a warning may be shown on your map and a Maps API Premier sales manager may contact you to discuss your licensing options.

How much will excess map loads purchased online cost?

Applications generating map load volumes below the usage limits can use the Maps API at no cost providing the application meets the requirements of the Google Maps API Terms of Service. Excess map loads over the usage limits are priced as follows:

Service Usage limit
(per day) 		1,000 excess map loads
(in U.S. dollars)
JS Maps API v3 25,000 $4
JS Maps API v3 styled maps 2,500 $4[1] / $8[2]
Static Maps API 25,000 $4
Static Maps API styled maps 2,500 $4[1] / $8[2]
Street View Image API 25,000 $4
JS Maps API v2 25,000 $10
[1] - From 2,500 to 25,000 map loads per day
[2] - Above 25,000 map loads per day

Excess map loads will not be offered online for the Maps API for Flash. Sites using the Maps API for Flash and exceeding the usage limits should migrate to the JS Maps API v3, or purchase a Maps API Premier license.

Excess map loads will be sold online through the Google APIs Console. Usage will be calculated daily, and the excess billed monthly to a credit card. Note that if your site consistently generates a high volume of map loads per day a Maps API Premier license may be more cost effective.

Note also that the purchase of excess map loads online does not confer any additional rights or benefits other than the right to continue using the Maps API under the existing Terms of Service.

Is there a limit to the number of geocode requests I can submit?

The documentation for the Maps API Geocoding Web Service documents the Usage Limits that apply to the service. For more detailed information, including recommendations on how to reduce the risk of being affected by these limits, please see the article on Geocoding Strategies.

How does the Google Maps APIs key system work?

Note: Google Maps API keys are only required when using the JavaScript Maps API V2 and the Maps API for Flash.

In order to obtain a Google Maps API key, you must sign in to your Google Account and agree to our Terms of Service. There is no limit to the number of keys you may obtain under a single account.

For most applications we recommend that you simply register your domain name. Your key will be valid for that domain, its subdomains, all URLs on hosts in those domains, and all ports on those hosts.

For example, if you sign up for a key using http://www.mygooglemapssite.com/, your key is valid for:

  • http://www.mygooglemapssite.com/
  • http://www.mygooglemapssite.com/mysite/

However this key will not be valid for:

  • http://mygooglemapssite.com/
  • http://host1.mygooglemapssite.com/
  • http://host2.mygooglemapssite.com/mysite

If as recommended you request a key for http://mygooglemapssite.com/ your key will be valid for all of the URLs listed above.

Note that a key for http://www.mygooglemapssite.com/ will only be accepted when the site is accessed using this address. It will not be accepted if the site is accessed by IP address (eg. http://10.1.2.3/) or by a hostname that is aliased to www.mygooglemapssite.com using a DNS CNAME record.

If you are using the Javascript Maps API V2 and your key is not working on your site, put an alert(window.location.host) in your code and reload the page. The domain you see in that alert is the one on which your key should be registered.

If you're using the Maps API for Flash and your key is not working, make sure the key is registered for the domain from which the SWF is being served, not for the domain on which the SWF is embedded.

How can I configure my map application to select and use a valid API key when hosted behind multiple domains?

Note: Google Maps API keys are only required when using the JavaScript Maps API V2 and the Maps API for Flash.

Some applications may be hosted on multiple domains. For example, many content management systems push the same content to different domains (e.g. example.com and example.net) and wish to have that content single-sourced. Since Google Maps API keys are generated per domain, you'll need to generate separate keys for each domain and configure your application to use the correct one. The easiest way to do this in JavaScript is to dynamically generate the <script> tag using document.write and assigning the correct domain-specific key within the src attribute's URL as a parameter. In doing so, you'll need to pre-generate and hardcode the list of keys within your application.

One technique we suggest is to create an object which contains a mapping between domain names and its corresponding Google Maps API keys. Use window.location.host to retrieve the domain name your application is running against, and pass it into the object to select the appropriate key.

Below is a JavaScript snippet you can copy and paste into your application. Replace property names labeled domain*.com on the left with your list of domains and assign to each entry its corresponding and unique Google Maps API key. 

document.write([
  '<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key=', {
    'domain1.com': 'apikey1',
    'domain2.com': 'apikey2',
    'domain3.com': 'apikey3',
    'domainN.com': 'apikeyN'
  }[window.location.host],
  '" type="text/javascript"></script>'
].join(''));

When using the snippet above, be sure to include it within your HTML document above any <script> tags or JavaScript containing references to Google Maps API objects.

How can I find out the changes introduced in each version of the Google Maps APIs?

We maintain a list of changes between JavaScript Maps API V3 versions at:

http://code.google.com/p/gmaps-api-issues/wiki/JavascriptMapsAPIv3Changelog

You can also check which version of the Google Maps API a particular bug was introduced and fixed in using the Google Maps API Issue Tracker at:

http://code.google.com/p/gmaps-api-issues/issues/list

How can I load the API into a page asynchronously after the page has loaded?

Just specify the callback parameter when loading the API. More information and sample code can be found in the documentation.

How can I get the Google Maps APIs to display in a language other than English?
The map controls, tooltips, and copyrights have been translated for a subset of languages, listed in the spreadsheet below. The API will sense the browser settings of the user and set the language appropriately. It is possible to override the language in the APIs; more information is available in the JavaScript API documentation and the Flash API reference.

Check out the Supported Languages Spreadsheet.

Can the Google Maps APIs be accessed over SSL (HTTPS)?

The Google Maps JavaScript API V3, Google Static Maps API, and Google Maps API Web Services can be accessed over secure (HTTPS) connections by developers using either the free version of these APIs or Google Maps API Premier. Please see the documentation for the API concerned for information on how to access the API over SSL.

The Google Maps JavaScript API V2 and Google Maps API for Flash can be accessed over a secure (HTTPS) connection by Google Maps API Premier customers only. If these Maps APIs are used with a free Maps API key on a secure site, the browser may warn the user about non-secure objects on the screen.

Can the Google Maps API for Flash be used by a Flash application hosted on an SSL (HTTPS) site?

The Google Maps API for Flash can be used in a Flash application (SWF file) that is hosted on an SSL (HTTPS) site. However only Google Maps API Premier customers can load the Google Maps API for Flash over HTTPS. When the Google Maps API for Flash is loaded by a Flash application hosted on an https site using a free Maps API Key, the API is loaded over HTTP, and all connections to Google made by the API are over HTTP.

To load the Google Maps API for Flash using a free Maps API key in a Flash application hosted on an SSL site, you must:

  • Use Google Maps API for Flash version 1.9a or later.
  • Add the following to your Flash application before the map is instantiated:

    Security.allowInsecureDomain("maps.googleapis.com");

Why do I get a Security Sandbox error when using BitmapData.draw/3D effects in the Flash API?

The Maps API for Flash does not currently allow calls to BitmapData.draw(). Calling this method will result in a run-time Security Sandbox error. Several ActionScript libraries call this function in order to enable transitions or 3-d effects, such as PaperVision3d. If you are using those libraries in your application, make sure you're not using them on the map. To be notified if this situation changes, please star this issue .

How do I report a bug or request a new feature in the Google Maps APIs?

If you experience behavior that you believe may be a bug, please begin by raising it in the relevant forum. This will allow other developers to validate the bug, and rule out any potential issues with your code.

If you wish to request a feature, please also first raise it in the relevant forum to confirm that a solution that meets your requirements is not already available.

Once you have confirmed that you have identified a new bug, or that your requirements can not be met by the existing functionality of the Google Maps APIs, please report your bug or feature request using the Google Maps API Issue Tracker.

Before adding a bug or feature request to the Issue Tracker please be sure to check that the bug or feature concerned has not already been added. If it has, you can star the issue to register your interest and be notified of updates.

I have a different question/problem. Who should I contact?

Please post your question in the relevant forum to get help from the Google Maps developer community. The Google Maps team also monitors and participates in this group.

For best results when requesting help, please keep the following in mind:

  • Search the current discussions. Chances are someone else has experienced a similar issue and found a fix.
  • Submit a link to your site if possible. Only post code snippets if the code is not easily viewable online.
  • Provide all relevant information including browser versions, errors, and all other facts that may be useful in troubleshooting this problem.

Google Maps API Premier customers may also contact Google Enterprise Support.

I need to convert addresses to latitude/longitude pairs. Can I do that with the Google Maps APIs?

Yes, this process is called "geocoding." each of the Google Maps APIs includes a class for performing geocoding. The classes are:

Alternatively Google also provides a Geocoding Web Service, which offers a REST interface that can respond in JSON and XML formats.

Please be aware of the usage limits that apply to geocoder requests, and note that use of the geocoder for any purpose other than obtaining locations that will be displayed using the Google Maps APIs is a violation of the Terms of Service. You may use the HTTP geocoder to geocode addresses outside of your Google Maps API application so that they may be cached and later displayed using one of the Google Maps APIs, but locations obtained using the Geocoding Web Service may not be used by any other application, distributed by other means, or resold.

What countries is geocoding available in?

To see countries currently supported by the Google Maps APIs geocoders, please check out this spreadsheet and select "Yes" in the geocoding dropdown.

The accuracy of geocoded locations may vary per country, so you should consider using the returned location_type field to determine if a good enough match has been found for the purposes of your application. Please note that the availability of geocoding data depends on our contacts with data providers, so it is subject to change.

For geocoding in countries not currently supported by the Google Maps APIs, please browse this list of other geocoding services.

Why do the Google Maps APIs Geocoders provide different locations than Google Maps?

The API geocoder and Google Maps geocoder sometimes use different data sets (depending on the country). The API geocoder occasionally gets updated with new data, so you can expect to see results changing or improving over time.

How should I format a U.S. address on a numbered highway for geocoding?

The Google Maps APIs geocoder requires that U.S. numbered highways be specified in addresses as follows:

  • County Roads: "Co Road NNN" where NNN is the road number. eg. "Co Road 82"
  • State Highways: "State NNN" where State is the full name of the state and NNN is the highway number. eg. "California 82"
  • U.S. Highways: "U.S. NNN" where NNN is the highway number. eg. "U.S. 101"
  • U.S. Interstates: "Interstate NNN" where NNN is the interstate number. eg. "Interstate 280"

What is the meaning of the Accuracy value of a geocoder response?

The Accuracy value represents the scale of the feature that has been geocoded. It does not represent a ranking or level of confidence in the result.

When the geocoder receives a query it attempts to find the best matched feature for the address given. Depending on the amount of data we have for the area concerned, the geocoder may be able to identify a specific building that matches, or it may only be able to match the street or district.

If the geocoder can only match a higher level feature such as the district it will still return a lat/long, but it will be for the centroid of that feature, which is likely to be offset from the location of the specific address requested. The Accuracy tells you the scale of the object that matched, so you know how precise the geocode is likely to be.

The list of possible values for the Accuracy and the scale of feature that each represents is given in the documentation:

How should I format my geocoder queries to maximise the number of successful requests?

The geocoder is designed to map street addresses to geographical coordinates. We therefore recommend that you format geocoder requests in accordance with the following guidelines to maximise the likelihood of a successful query:

  • Specify addresses in accordance with the format used by the national postal service of the country concerned.
  • Do not specify additional address elements such as business names, unit numbers, floor numbers, or suite numbers that are not included in the address as defined by the postal service of the country concerned.
  • Use the street number of a premise in preference to the building name where possible.
  • Use street number addressing in preference to specifying cross streets where possible.
  • Do not provide 'hints' such as nearby landmarks.

When should I use an API geocoder class and when should I use the HTTP Geocoding Service?

See the article: Geocoding Strategies, which details the pros and cons of different geocoding strategies.

How do I provide driving directions with the Google Maps APIs?

The Google Maps Javascript API allows you to provide driving directions via the google.maps.DirectionsService class. This class provides you with step-by-step access to basic and multi-point driving directions. The DirectionsRenderer class can automatically create the overlays and directions panel for you. Additional examples are provided in the documentation.

You can also easily link to Google Maps for driving directions. We suggest you use the following format for driving directions on Google Maps:

http://maps.google.com/maps?saddr={start_address}&daddr={destination_address}

What countries is driving directions available in?

To see countries currently supported by Driving Directions in the Maps API, check out this spreadsheet and choose "Yes" in the driving directions column dropdown. Please note that the availability of driving directions data depends on our contacts with data providers, so it is subject to change.

What features of KML & GeoRSS are supported in the Google Maps Javascript API?

The KmlLayer class in the Javascript API enables developers to overlay KML/KMZ and GeoRSS files on top of the map. Examples are here.

The KML features currently supported by the KmlLayer class are documented at:

http://code.google.com/apis/kml/documentation/mapsSupport.html

What are the limits on the size and complexity of KML that can be displayed using the KmlLayer class of the Google Maps Javascript API?

The size and complexity limits on the display of KML using the KmlLayer class are documented at:

http://code.google.com/apis/kml/documentation/mapsSupport.html

What is the maximum number of markers or path vertices supported by the Google Static Maps API?

There is no limit to the number of markers or path vertices supported by the Google Static Maps API. However Static Maps API URLs can be a maximum of approximately 2,000 characters which constrains the number of markers and path vertices that can be specified based on the number of decimal places used when specifying each latitude/longitude pair. For information on how the number of decimal places used relates to the accuracy on the Earth see the Wikipedia article on Decimal Degrees.

Can I include advertising on my map?

Yes, you're welcome and encouraged to monetize your maps mashup through advertising. The JavaScript Maps API offers an AdSense Library to help you add advertising to your maps mashups. Read the developer's guide for more information.

You can also put AdSense ad units on the same page as your map mashup, outside of the map.

To sign up for AdSense and get a publisher ID, or to learn how to put ad units on your page, visit adsense.google.com.

How can I find my AdSense publisher ID?

To find your unique AdSense publisher ID number, log into your AdSense account at http://www.google.com/adsense. On the My Account tab, scroll down to the Property info section. Your publisher ID for each AdSense product and feature will be located in this section.

Alternatively, you can find your publisher ID number within your AdSense code. Just locate the AdSense code in the HTML source code of your website, and you'll spot your publisher ID in a line like the one shown below:

google_ad_client="ca-pub-xxxxxxxxxxxxxxxx";

What is an AdSense channel?

Please refer to the information on channels in the AdSense Help Center.

What countries is advertising with the ads layer available in?

Any developer whose page content is in one of the AdSense for Content languages can implement the ads layer. Currently, only advertisers from the United States will show ads in the ads layer. As the program continues, ads from advertisers in other countries may become available.

I'm using the ads layer but I don't see ad markers on my map. What am I doing wrong?

Note: This FAQ entry applies to V2 (deprecated). V3 uses the AdUnit class to display ads on or around the map.

If you've implemented the ads layer by initializing a GAdsManager on your map and aren't seeing any ads, there may be several reasons:

  • The first thing to do is to check your code: make sure you pass a valid AdSense ID into the GAdsManager constructor, and make sure you call enable() on GAdsManager after initialization.
  • If the page your map is on has never been crawled by Google, you'll need to wait 2-24 hours for it to be crawled. The page needs to be crawled so that AdSense can analyze the text around your map for keywords. Make sure your robots.txt file is designed so that the Googlebot can crawl the directory your map is residing in. More information on Google site crawling is available here.
  • There are several reasons why AdSense may choose not to display ads on your site after seeing the results of the Googlebot crawl. Please refer to the information on these restrictions in the AdSense Help Center.
  • If you've followed the above steps, you should see occasional ad markers show up on your map. Where ads show up will depend on locations advertisers are targeting. You're more likely to see ad markers show up around densely populated cities, as there are a greater number of advertisers in those areas. In addition, you likely will only see ads show up when the map is centered on an area within a country where ads layer ads are available.