What is Proximic?
Direct Answer: Proximic bot, operated by ComScore, crawls websites to determine ad suitability.
The Proximic crawler visits websites serving ads on behalf of ComScore or their partners to determine which ads best fit a given website's content. It uses specific user-agents to identify itself.
User-Agent Identification
The following user-agent strings identify Proximic in your live traffic data:
Mozilla/5.0 (compatible; proximic; +https://www.comscore.com/Web-Crawler)Mozilla/5.0 (compatible; proximic; +http://www.proximic.com/info/spider.php)
robots.txt Rules for Proximic
Respects robots.txt: Yes
Use the following robots.txt rules to control Proximic access:
# Block Proximic
User-agent: proximic
Disallow: /
# Allow Proximic
User-agent: proximic
Allow: /Robots.txt is a directive, not a barrier
ComScore states that Proximic respects robots.txt. However, configuration mistakes, caching delays, and edge cases mean your directives may not always be followed as expected. Live traffic verification confirms whether Proximic actually obeys your rules in practice.
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Crawl Behavior
Frequency:Not Documented
Request Pattern:Not Documented
Crawl Activity Index
Relative crawl activity for Proximic over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.
View recent activity data (last 7 days)
| Date | Activity Index |
|---|---|
| Mar 28, 2026 | 73.0 |
| Mar 29, 2026 | 76.0 |
| Mar 30, 2026 | 71.2 |
| Mar 31, 2026 | 62.9 |
| Apr 1, 2026 | 63.2 |
| Apr 2, 2026 | 72.9 |
| Apr 3, 2026 | 69.9 |
Source: Cloudflare Radar
Why track Proximic traffic?
Verify ad system crawling behavior. Proximic evaluates your pages for ad targeting, quality scoring, and policy compliance.
Optimize ad delivery. If Proximic can't properly access certain pages, ad targeting and revenue may be impacted. Log monitoring confirms accessibility.
Log Verification
To verify Proximic traffic in your live traffic data:
- Search access logs for the user-agent strings listed above
- Check if the IP addresses match documented ranges (if provided by ComScore)
- Verify the crawl pattern matches documented behavior
- Use reverse DNS lookup for additional verification if available
Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.
Undocumented Information
The following information is not officially documented for Proximic:
- crawl frequency
- IP verification
- JavaScript rendering
Official Documentation
View Official Proximic Documentation →
Information sourced from official documentation. Content generated with AI assistance.