What is Sitebulb?
Sitebulb is a website crawler used for conducting technical SEO audits, available in both desktop and cloud versions. It crawls websites to analyze their structure and provide prioritized insights and recommendations for search engine optimization. You can set up Agent Analytics to see when Sitebulb visits your website.
Overview
| Operated By | Sitebulb |
| Source | Official Website |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | September 14, 2026 |
Do you operate this agent? Contact us to suggest an update.
Category
Expected Behavior
Sitebulb 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.
Sitebulb's User Agent
| User Agent | Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.7444.162 Safari/537.36 (compatible; Sitebulb/1.1; +https://sitebulb.com) |
How To Block Sitebulb With Robots.txt
Add this rule to your robots.txt file to block Sitebulb 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: Sitebulb # https://knownagents.com/agents/sitebulb
Disallow: /Insights for Sitebulb
As of September 14, 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 Sitebulb in their robots.txts.
Overall SEO Crawler Traffic
1.7% of all web traffic came from SEO crawlers.
Top Visited Website Categories
The types of websites most frequently visited by Sitebulb.
Frequently Asked Questions
Should I Block Sitebulb?
Consider blocking Sitebulb 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, 6% of the top websites we track currently have robots.txt rules for Sitebulb.
Does Sitebulb Follow Robots.txt Rules?
Yes. Sitebulb 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 Sitebulb respects it.
Does Sitebulb Access Private Content?
No. Sitebulb can reach only public pages, and authentication prevents it from accessing private content.
How Can I Tell if Sitebulb Is Visiting My Website?
Agent Analytics tracks Sitebulb visits in real time. You can also check your server logs for requests whose user-agent string contains "Sitebulb". Look for comprehensive site crawls that follow internal links. Because Sitebulb does not publish a verification method, any client can claim its identity and a log match is only a clue.
Why Is Sitebulb Visiting My Website?
Your domain appears in the ranking, backlink, or competitor data maintained by Sitebulb's operator. A customer may be tracking your site, one of your competitors, or a backlink that connects another site to yours.