Placement attribute targeting

1. A computer-implemented method comprising:

receiving, with a request for content to present with a web page, attribute information that was provided by a publisher of the web page and specifies a page type of the web page, the page type being one of a home page or a login page;

traversing the web page to identify content of the web page;

based on the identified content of the web page, identifying a page attribute of the web page;

comparing the identified page attribute of the web page with the attribute information provided by the publisher;

based on the comparing, determining that the identified page attribute of the web page matches the attribute information provided by the publisher, and in response, verifying the attribute information provided by the publisher as accurate;

based on the verification of the attribute information as accurate, selecting content that has been specified for presentation with web pages having attributes matching the attribute information provided by the publisher; and

transmitting the selected content to a client device for display as at least part of the web page.

2. The method of claim 1 wherein the traversing, identifying, comparing, determining, verifying, selecting, and transmitting are in response to receiving a request to display content from the user.

3. The method of claim 1 further comprising monitoring a number of requests to view the web page to establish a quality level for the web page.

4. The method of claim 1 further comprising receiving the content from a source, wherein the source specifies corresponding attributes of web pages to which the content can be included.

5. The method of claim 1 further comprising displaying the web page with the selected content on a device at a network location.

6. The method of claim 1 wherein the content includes one or more advertisements.

7. A system comprising:

one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising:

receiving, with a request for content to present with a web page, attribute information that was provided by a publisher of the web page and specifics a page type of the web page, the page type being one of a home page or a login page;

traversing the web page to identify content of the web page;

based on the identified content of the web page, identifying a page attribute of the web page;

comparing the identified page attribute of the web page with the attribute information provided by the publisher;

based on the comparing, determining that the identified page attribute of the web page matches the attribute information provided by the publisher, and in response, verifying the attribute information provided by the publisher as accurate;

based on the verification of the attribute information as accurate, selecting content that has been specified for presentation with web pages having attributes matching the attribute information provided by the publisher; and

transmitting the selected content to a client device for display as at least part of the web page.

8. The system of claim 7 wherein the operations of traversing, identifying, comparing, determining, verifying, selecting, and transmitting are in response to receiving a request to display content from the user.

9. The system of claim 7 the operations further comprising monitoring a number of requests to view the web page to establish a quality level for the web page.

10. The system of claim 7 the operations further comprising receiving the content from a source, wherein the source specifies corresponding attributes of web pages to which the content can be included.

11. The system of claim 7 the operations further comprising displaying the web page with the selected content on a device at a network location.

12. The system of claim 7 wherein the content includes one or more advertisements.

13. A non-transitory computer-readable medium storing software comprising instructions executable by one or more computers which, upon such execution, cause the one or more computers to perform operations comprising:

receiving, with a request for content to present with a web page, attribute information that was provided by a publisher of the web page and specifies a page type of the web page, the page type being one of a home page or a login page;

traversing the web page to identify content of the web page;

based on the identified content of the web page, identifying a page attribute of the web page;

comparing the identified page attribute of the web page with the attribute information provided by the publisher;

based on the comparing, determining that the identified page attribute of the web page matches the attribute information provided by the publisher, and in response, verifying the attribute information provided by the publisher as accurate;

based on the verification of the attribute information as accurate, selecting content that has been specified for presentation with web pages having attributes matching the attribute information provided by the publisher; and

transmitting the selected content to a client device for display as at least part of the web page.

14. The computer-readable medium of claim 13 wherein the traversing, identifying, comparing, determining, verifying selecting, and transmitting are in response to receiving a request to display content from the user.

15. The computer-readable medium of claim 13 further configured to monitor a number of requests to view the web page to establish a quality level for the web page.

16. The computer-readable medium of claim 13 further configured to receive the content from a source, wherein the source specifies corresponding attributes of web pages to which the content can be included.

17. The computer-readable medium of claim 13 further configured to display the web page with the selected content on a device at a network location.

18. The computer-readable medium of claim 13 wherein the content includes one or more advertisements.