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The Robots Exclusion Protocol (often referred to by the filename used to implement it, robots.txt) is a standard used by websites to indicate to visiting web crawlers and other web robots which portions of the website they are allowed to visit.
Standards & History
Explore the main themes, entities and connections around Robots.txt. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
robots txt file standard web files website search pages crawlers bots use example protocol google access used websites server exclusion
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Robots.txt | Authors | Martijn Koster (original author) | 1.00 | infobox |
| Robots.txt | Authors | Gary Illyes, Henner Zeller, Lizzi Sassman (IETF contributors) | 1.00 | infobox |
| Robots.txt | First published | 1994 published, formally standardized in 2022 | 1.00 | infobox |
| Robots.txt | Status | Proposed Standard | 1.00 | infobox |
| Robots.txt | Website | robotstxt.org, RFC 9309 | 1.00 | infobox |
| WebCrawler | instance of | including those operated by search engines | 0.80 | text |
| Lycos | instance of | including those operated by search engines | 0.80 | text |
| and AltaVista.On July 1 | instance of | including those operated by search engines | 0.80 | text |
| 2019 | instance of | including those operated by search engines | 0.80 | text |
| Google announced the proposal of the Robots Exclusion Protocol as an official standard under Internet Engineering Task Force | instance of | including those operated by search engines | 0.80 | text |
| Google.A robots.txt file on a website will function as a request that specified robots ignore specified files or directories when crawling a site | instance of | Robots.txt files are particularly important for web crawlers from search engines | 0.80 | text |
| the BBC | instance of | Denying access to GPTBot was common among news websites | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.