Hot answers tagged search-engines
Make sure you return a 404 or a 410 for deleted pages. Then resubmit a sitemap.xml with all the links/URLs of the website before the SEO attack using dummy recent lastmod values. Make sure your are not blocking access to those URLS in your robots.txt. Then, be patient.
Use the "Fetch as Google" function in Google Webmaster tools and then click on "Submit to index" and then select "Crawl this URL and its direct links". This should expedite the re-crawl of those specific pages.
Re-submit the sitemap and... wait. Also, the most effective way to "stimulate" Google to re-visit and re-index is through new links from other websites to the pages that need to be spidered.
One way to do this is to use an image of text rather than plain text. It is possible that Google will eventually be smart enough to read the text out of the image, so it might not be completely future-proof, but it should work well for at least a while from now. There's a bunch of disadvantages to this approach. If a person is visually impaired, it's bad. ...
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