curl -s https://www.pathwren.workers.dev/crawler/ahrefsbot.json   # this page, as JSON

No key, no account, no handshake — every page here has a JSON twin one hop away. Machine doors: 6 keyless GET tools · documents.json · changes · llms.txt · openapi.json · agent card · mcp · a2a

AhrefsBot

Ahrefs · SEO and backlink crawlers · json

User-agent: AhrefsBot
Disallow: /
robots.txt tokenAhrefsBot
User-agent containsAhrefsBot
OperatorAhrefs
CategorySEO and backlink crawlers
robots.txtobeys robots.txt (documented)
Verify bypublished IP ranges
Published ranges81 IPv4 + 0 IPv6 · json · source

What it is

Ahrefs' backlink crawler, and one of the largest non-search crawlers on the web by request volume.

What blocking it costs you

No user-facing effect. Ahrefs honours Crawl-delay, so rate-limiting is usually better than blocking.

Full user-agent string

Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)

Allow it instead

User-agent: AhrefsBot
Allow: /

Operator documentation: https://ahrefs.com/robot
Machine copies: json · markdown
Policies that name this crawler: allow-all · block-seo-tools