query: Should I 410 old 404 pages?
positive_passages.docid: 146166
positive_passages.text: Does it make sense to return a 410 instead of 404 when some page has been permanently removed?
negative_passages.docid: 3303
negative_passages.text: SEO (or other) problems with a 404?
negative_passages.docid: 74037
negative_passages.text: Google Webmaster Tools reporting crawl error 404 (Not found) for a page which has never existed
negative_passages.docid: 27648
negative_passages.text: How can I enable clean URLs?
negative_passages.docid: 127713
negative_passages.text: How to find unused indexes?
negative_passages.docid: 4348
negative_passages.text: Google is still crawling and indexing my old, dummy, test pages which now are 404 not found
negative_passages.docid: 44368
negative_passages.text: 404 error during flagging a question
negative_passages.docid: 133
negative_passages.text: How can I fix a 404 Error when using a PPA or updating my package lists?
negative_passages.docid: 52279
negative_passages.text: Refreshing error pages lead to error pages even after the error is fixed
negative_passages.docid: 145404
negative_passages.text: Redirect Restricted Page to 404
negative_passages.docid: 28494
negative_passages.text: Buying expired domains - what to look for?
negative_passages.docid: 78925
negative_passages.text: How long should I keep 301 redirecting pages from a deprecated domain?
negative_passages.docid: 100089
negative_passages.text: How to fix soft 404 errors in GWT?
negative_passages.docid: 51513
negative_passages.text: More 404s with missing slashes
negative_passages.docid: 80753
negative_passages.text: Republishing Intentionally Expired Job Listings
negative_passages.docid: 113491
negative_passages.text: How do I skip wordpress's 404 handling?
negative_passages.docid: 20409
negative_passages.text: How do I make pages which were "intentionally left blank"?