Google Wants to Establish an Official Standard for Using Robots.txt - Search Engine Journal

1. Google Wants to Establish an Official Standard for Using Robots.txt  Search Engine Journal
2. Google wants to make robots.txt an Internet standard after 25 years  9to5Google
3. Google open-sources robots.txt parser in push to make Robots Exclusion Protocol an official standard  VentureBeat
4. Google pushes for an official web crawler standard  Engadget
5. Google Works To Make Robots Exclusion Protocol A Real Standard  Search Engine Roundtable
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