How does Tripadviser ensure all their user reviews get crawled?

[linklater]

Tripadvisor has a LOT of user generated content. Searching for a random hotel always seems to return a paginated list of 90+ pages. However once the first page is clicked and "#REVIEWS" is appended to the URL, the URL never changes with any subsequent clicks of the paginated links.

How do they ensure that all this review content gets crawled?

Thanks,

linklater

[Bob_van_Biezen]

Hallo Linklater,

The short answer, internal site structure + domain autority.

For the long answer, could you provide me with an URL example? I tried to duplicate your setting but didn't find the pages you describe.

[MattAntonino]

The review pages actually do change.  These are 2 URLs for 2 reviews on the same property:

http://www.tripadvisor.com.au/ShowUserReviews-g255060-d255650-**r265622033**-Hilton_Sydney-Sydney_New_South_Wales.html#CHECK_RATES_CONT

http://www.tripadvisor.com.au/ShowUserReviews-g255060-d255650-**r265582073**-Hilton_Sydney-Sydney_New_South_Wales.html#CHECK_RATES_CONT

They don't change after the hash - they change before it.  And the ones you're talking about:

http://www.tripadvisor.com.au/Hotel_Review-g255060-d255650-Reviews-Hilton_Sydney-Sydney_New_South_Wales.html

http://www.tripadvisor.com.au/Hotel_Review-g255060-d255650-Reviews-**or10**-Hilton_Sydney-Sydney_New_South_Wales.html#REVIEWS

http://www.tripadvisor.com.au/Hotel_Review-g255060-d255650-Reviews-**or20**-Hilton_Sydney-Sydney_New_South_Wales.html#REVIEWS

[LinkWheelOldSchool]

Domain authority is the key here, now only their links get crawled but they all get ranked, usually in the top 10.