Archive for July, 2019

Helping publishers and users get more out of visual searches on Google Images with AMP

Google Images has made a series of changes to help people explore, learn and do more through visual search. An important element of visual search is the ability for users to scan many ideas before coming to a decision, whether it’s purchasing a product, learning more about a stylish room, or finding instructions for a […]

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A note on unsupported rules in robots.txt

Yesterday we announced that we’re open-sourcing Google’s production robots.txt parser. It was an exciting moment that paves the road for potential Search open sourcing projects in the future! Feedback is helpful, and we’re eagerly collecting questions from developers and webmasters alike. One question stood out, which we’ll address in this post:Why isn’t a code handler […]

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Google’s robots.txt parser is now open source

For 25 years, the Robots Exclusion Protocol (REP) was only a de-facto standard. This had frustrating implications sometimes. On one hand, for webmasters, it meant uncertainty in corner cases, like when their text editor included BOM characters in their robots.txt files. On the other hand, for crawler and tool developers, it also brought uncertainty; for […]

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Formalizing the Robots Exclusion Protocol Specification

For 25 years, the Robots Exclusion Protocol (REP) has been one of the most basic and critical components of the web. It allows website owners to exclude automated clients, for example web crawlers, from accessing their sites – either partially or completely.In 1994, Martijn Koster (a webmaster himself) created the initial standard after crawlers were […]

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