Ahrefs SEO crawler / brand user-agent.
Official: ahrefs.com/robot
Send the User-Agent to the API, device, OS, browser, and bot detection come back in one response. aHrefs Bot is identified by name when the string matches.
curl -s "https://api.parseapi.com/useragent" \ -H "User-Agent: Mozilla/5.0 (compatible; AhrefsBot/5.2; +http://ahrefs.com/robot/)" \ -H "X-Api-Key: $PARSEAPI_KEY"
Real strings from our archive that resolve to aHrefs Bot. Each opens a full breakdown.