Advise crawlers not to follow pb links #467
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
We see a lot of crawlers hitting FRUS page image pages. Since these pages have no text content, search engines needn't index these pages. This doesn't prevent anyone from visiting these pages; it just advises bots that they shouldn't follow links to these pages. Hopefully it'll prevent some unnecessary traffic to a very large collection of pages (~ half a million).