What is SemrushBotSI?
Direct Answer: SEMrushBotSI is a bot operated by Semrush for SEO tool purposes, specifically for data collection.
SEMrushBotSI is a bot used by Semrush for collecting data to support various SEO tools such as On Page SEO Checker, SEO Content template, and Topic Research tool reports. It is identified by the user-agent string 'Mozilla/5.0 (compatible; SemrushBot-SI/0.97; +http://www.semrush.com/bot.html)'. The bot does not follow robots.txt instructions from the database.
User-Agent Identification
The following user-agent strings identify SemrushBotSI in your live traffic data:
Mozilla/5.0 (compatible; SemrushBot-SI/0.97; +http://www.semrush.com/bot.html)
robots.txt Rules for SemrushBotSI
Respects robots.txt: No
This bot does not commit to following robots.txt
SemrushBotSI does not officially follow robots.txt directives. The only reliable way to control access is through server-side blocking (IP filtering, user-agent rules in your web server config) combined with log monitoring to verify effectiveness.
Need continuous verification across 500+ bots? Can AI See It automates this.
Crawl Behavior
Frequency:Not Documented
Request Pattern:Not Documented
Crawl Activity Index
Relative crawl activity for SemrushBotSI 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 26, 2026 | 88.0 |
| Mar 27, 2026 | 82.7 |
| Mar 28, 2026 | 83.1 |
| Mar 29, 2026 | 81.8 |
| Mar 30, 2026 | 87.3 |
| Mar 31, 2026 | 90.2 |
| Apr 1, 2026 | 88.8 |
Source: Cloudflare Radar
Why track SemrushBotSI traffic?
Control third-party crawl impact on your server. SemrushBotSI crawls your site to build Semrush's SEO database. While useful for competitive analysis, these crawlers can consume significant server resources on large sites.
Identify who's analyzing your site. SemrushBotSI visits reveal when competitors or agencies are running audits on your domain.
Manage crawl priority. If SemrushBotSI is consuming crawl budget you'd rather allocate to search engines, you can throttle or block it based on measured volume.
Surface 4XX and 5XX errors before search engines find them. If SemrushBotSI reports broken pages or server errors in its crawl data, you can fix those issues proactively — before search engine crawlers encounter them and your rankings suffer.
Is SemrushBotSI worth the server resources?
SemrushBotSI crawls your site to build Semrush's SEO database. Unlike search engines, this crawler doesn't send you any referral traffic — it feeds a third-party tool.
That's not necessarily a problem — Semrush's data may power tools you use yourself. The question is whether SemrushBotSI's crawl volume is proportionate to its value.
What Can AI See It measures
Requests per day and bandwidth consumed by SemrushBotSI
What % of your total bot traffic is SemrushBotSI?
Scrapers spoofing SemrushBotSI's user-agent string
Log Verification
To verify SemrushBotSI 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 Semrush)
- 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 SemrushBotSI:
- crawl frequency
- IP verification
- JavaScript rendering
- request pattern
See which SEO tools are crawling your site — and how much they cost you
- Identify third-party crawlers consuming your server resources
- Separate SEO tool traffic from search engine crawls
- Detect fake bots spoofing SemrushBotSI's user-agent
Official Documentation
View Official SemrushBotSI Documentation →
Information sourced from official documentation. Content generated with AI assistance.