What is VivianCrawler?
VivianCrawler is a web crawler operated by Evil Source Platform that indexes public web content for search. You can set up Agent Analytics to see when VivianCrawler visits your website.
Overview
| Operated By | Evil Source Platform |
| Source | Official Website |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | September 24, 2026 |
Do you operate this agent? Contact us to suggest an update.
Category
Expected Behavior
VivianCrawler follows an algorithmic schedule shaped by your site's popularity, update cadence, and domain authority. It generally spreads requests across recurring crawl passes, throttles itself to limit server load, and respects crawl rules more reliably than most other bots.
How To Block VivianCrawler With Robots.txt
Add this rule to your robots.txt file to block VivianCrawler from accessing your website, or use Automatic Robots.txt to block all search engine crawlers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: VivianCrawler # https://knownagents.com/agents/viviancrawler
Disallow: /Insights for VivianCrawler
As of September 24, 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
Frequently Asked Questions
Should I Block VivianCrawler?
No, unless you want to remove your pages from that search engine. VivianCrawler supplies its index, so blocking it can eliminate your visibility and organic traffic there. Nearly every website should allow this category. Almost none of the top websites we track currently have robots.txt rules for VivianCrawler.
Does VivianCrawler Follow Robots.txt Rules?
Yes. VivianCrawler 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 VivianCrawler respects it.
Does VivianCrawler Access Private Content?
No special access. VivianCrawler can reach only content available to anonymous visitors and does not sign in. Make sure sensitive content is not public by mistake.
How Can I Tell if VivianCrawler Is Visiting My Website?
Agent Analytics tracks VivianCrawler visits in real time. You can also check your server logs for requests whose user-agent string contains "VivianCrawler". Look for recurring passes that revisit changed pages and discover new ones. Because VivianCrawler does not publish a verification method, any client can claim its identity and a log match is only a clue.
Why Is VivianCrawler Visiting My Website?
VivianCrawler is adding new or changed pages to its search index. It may have discovered your site through links, a sitemap, or direct submission.