What is SemrushBot-OCOB?
SemrushBot-OCOB is the web crawler component used by Semrush's Content Toolkit for gathering and analyzing website content, supporting content marketing research, competitive analysis and SEO optimization. You can set up Agent Analytics to see when SemrushBot-OCOB visits your website.
Category
| Example User Agent | Mozilla/5.0 (compatible; SemrushBot-OCOB/1; +https://www.semrush.com/bot/) |
| Operated By | Semrush |
| Source | Official Website |
| Triggered By | Customer-configured crawl |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Not directly |
| Expected To Follow Robots.txt | Yes |
Why Is SemrushBot-OCOB Visiting My Website?
Your domain appears in the ranking, backlink, or competitor data maintained by SemrushBot-OCOB's operator. A customer may be tracking your site, one of your competitors, or a backlink that connects another site to yours.
Should I Block SemrushBot-OCOB?
Consider blocking SemrushBot-OCOB only if you do not want your pages included in SEO databases. It does not influence how search engines rank you, and blocking it will not hide backlinks to your site because those are discovered on the linking sites. For context, 10% of the top websites we track currently have robots.txt rules for SemrushBot-OCOB.
How Do I Block SemrushBot-OCOB Using Robots.txt?
Add this rule to your robots.txt file to block SemrushBot-OCOB from accessing your website, or use Automatic Robots.txt to block all SEO crawlers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: SemrushBot-OCOB # https://knownagents.com/agents/semrushbot-ocob
Disallow: /Insights for SemrushBot-OCOB
As of October 29, 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 Compliance
Country of Origin
Robots.txt Blocked Percentage
SemrushBot-OCOB Traffic
Frequently Asked Questions
What Traffic Patterns Should I Expect From SemrushBot-OCOB?
SemrushBot-OCOB usually performs comprehensive, link-following crawls rather than spot checks. Visit frequency may rise while a customer actively monitors your site or a related market.
Does SemrushBot-OCOB Follow Robots.txt Rules?
SemrushBot-OCOB is expected to follow robots.txt rules, so a disallow rule is the appropriate first step if you want to block it. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether SemrushBot-OCOB respects it.
Is SemrushBot-OCOB Used for AI Model Training?
Not ordinarily. SemrushBot-OCOB is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking SemrushBot-OCOB Affect AI Search or Citations?
Not directly. SemrushBot-OCOB's expected purpose is not to supply an AI search index or retrieve pages for AI-generated answers.
Does SemrushBot-OCOB Access Private Content?
No. SemrushBot-OCOB can reach only public pages, and authentication prevents it from accessing private content.
How Can I Verify a Request From SemrushBot-OCOB?
Agent Analytics tracks SemrushBot-OCOB visits in real time. You can also check your server logs for requests whose user-agent string contains "SemrushBot-OCOB". Look for comprehensive site crawls that follow internal links. Because SemrushBot-OCOB does not publish a verification method, any client can claim its identity and a log match is only a clue.
How Is SemrushBot-OCOB Different From Other Semrush Agents?
Semrush operates separate agents for different purposes, so each agent should be evaluated and controlled independently.
- SemrushBot-SWA: SemrushBot-SWA is a specialized crawler used by Semrush's SEO Writing Assistant tool to check if URLs are accessible and verify content availability for SEO analysis.
- SemrushBot: SemrushBot is the web crawler and search bot software that Semrush sends out to discover and collect web data for their SEO platform including backlink analytics, site au…
- SemrushBot-BA: SemrushBot-BA is a specialized web crawler used by Semrush's Backlink Audit tool to analyze website backlinks and identify potentially harmful or toxic links for SEO purp…
- SemrushBot-CT: SemrushBot-CT is an SEO crawler operated by Semrush.
- SemrushBot-SA: SemrushBot-SA crawls websites to perform comprehensive SEO analysis and identify technical issues for site audit and optimization recommendations.