What is AffsignalCrawler?
AffsignalCrawler is a web crawler that collects information about affiliate marketing relationships by mapping affiliate links across websites. It gathers data to help identify which publishers are promoting which merchants, supporting the Affsignal platform's competitive affiliate intelligence services. You can set up Agent Analytics to see when AffsignalCrawler visits your website.
Overview
| Operated By | Affsignal |
| Source | Official Website |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | September 13, 2026 |
Do you operate this agent? Contact us to suggest an update.
Category
Expected Behavior
AffsignalCrawler's traffic pattern depends on the intelligence being collected. It may revisit specific pages on a schedule, crawl broader sections of your site, or appear only when information is requested. Its request scope and frequency reflect the underlying objective.
AffsignalCrawler's User Agent
| User Agent | Mozilla/5.0 (compatible; AffsignalCrawler/1.0; +https://affsignal.com/bot) |
How To Block AffsignalCrawler With Robots.txt
Add this rule to your robots.txt file to block AffsignalCrawler from accessing your website, or use Automatic Robots.txt to block all intelligence gatherers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: AffsignalCrawler # https://knownagents.com/agents/affsignalcrawler
Disallow: /Insights for AffsignalCrawler
As of September 13, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.
Robots.txt Blocked Percentage
Country of Origin
Robots.txt Blocking Trend
6% of top websites block AffsignalCrawler in their robots.txts.
Overall Intelligence Gatherer Traffic
3.5% of all web traffic came from intelligence gatherers.
Top Visited Website Categories
The types of websites most frequently visited by AffsignalCrawler.
Frequently Asked Questions
Should I Block AffsignalCrawler?
Confirm AffsignalCrawler's purpose before blocking it. Intelligence gatherers may collect competitive research, measure advertisements, or evaluate pages for brand safety. Weigh any benefit against sharing business or page-level data with its operator or clients. For context, 6% of the top websites we track currently have robots.txt rules for AffsignalCrawler.
Does AffsignalCrawler Follow Robots.txt Rules?
Yes. AffsignalCrawler is expected to follow robots.txt rules, so a disallow rule is the appropriate first step. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether AffsignalCrawler respects it.
Does AffsignalCrawler Access Private Content?
No special access. AffsignalCrawler can read publicly available pages but cannot bypass authentication. Assume anything you publish openly may be collected.
How Can I Tell if AffsignalCrawler Is Visiting My Website?
Agent Analytics tracks AffsignalCrawler visits in real time. You can also check your server logs for requests whose user-agent string contains "AffsignalCrawler". Traffic may range from repeated requests to the same pages to broader crawls or one-off fetches. Because AffsignalCrawler does not publish a verification method, any client can claim its identity and a log match is only a clue.
Why Is AffsignalCrawler Visiting My Website?
Affsignal or one of its clients may be gathering competitive intelligence, measuring advertisements, or evaluating content for brand safety. The pages requested reflect the underlying objective.