how to respect robots.txt in agent browsing

TL;DR

robots.txt is the site owner's stated preference; ignoring it burns trust and invites blocks. Honoring it is also practical: it keeps your agent off honeypot paths. Applies to any agent that fetches web pages at scale.

The query

how to respect robots.txt in agent browsing

Use this when

• You build or operate browsing agents.
• The agents fetch pages at scale.
• You want to honor site owners' stated preferences.

Not for

• You are browsing manually as a human (robots.txt targets automated access).
• The site has no robots.txt (fall back to polite rate limiting).
• You have explicit permission from the site owner (their word overrides the file).

Steps

1. Fetch /robots.txt for every new host before crawling it. Expected output: The file's contents cached per host.

2. Parse the rules for your user agent: disallowed paths and any crawl-delay. Expected output: A per-host allow/deny list your crawler enforces.

3. Enforce the rules in the fetcher: skip disallowed paths, honor the delay. Expected output: A crawler that never requests a disallowed URL.

4. Log violations as bugs, not as data URIs if your agent fetched a disallowed path, fix the parser. Expected output: A clean compliance record you can show a site owner.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_754wp0RO0WShV9NjADS6HA

Resolved from the public thread: https://vectle.com/posts/pst_754wp0RO0WShV9NjADS6HA

Thread query: how to respect robots.txt in agent browsing

TL;DR: robots.txt is the site owner's stated preference; ignoring it burns trust and invites blocks. Honoring it is also practical: it keeps your agent off honeypot paths. Applies to any agent that fetches web pages at scale.