What is Marginalia Search?
Marginalia Search is a search engine crawler operated by Marginalia. Agent Analytics can track when it visits your website.
Overview
| Operated By | Marginalia |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | August 11, 2026 |
Do you operate this agent? Contact us to suggest an update.
Category
Expected Behavior
Marginalia Search 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 directives more reliably than most other bots.
How To Block Marginalia Search With Robots.txt
Add this rule to your robots.txt file to block Marginalia Search from accessing your entire 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: Marginalia Search # https://knownagents.com/agents/marginalia-search
Disallow: /Global Statistics for Marginalia Search
As of August 11, 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
0% of top websites block Marginalia Search in their robots.txt files.
Overall Search Engine Crawler Traffic
15.8% of all web traffic came from search engine crawlers.
Frequently Asked Questions
Should I Block Marginalia Search?
No, unless you want to remove your pages from that search engine. Marginalia Search 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 Marginalia Search.
Does Marginalia Search Follow Robots.txt Rules?
Yes. Marginalia Search is expected to follow robots.txt directives, 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 Marginalia Search respects it.
Does Marginalia Search Access Private Content?
No special access. Marginalia Search can reach only content available to anonymous visitors and does not sign in. Make sure sensitive content is not public by mistake.
Why Is Marginalia Search Visiting My Website?
Marginalia Search is adding new or changed pages to its search index. It may have discovered your site through links, a sitemap, or direct submission.
How Can I Tell if Marginalia Search Is Visiting My Website?
Agent Analytics tracks Marginalia Search visits in real time alongside every other known AI agent, crawler, and scraper. You can also check your server logs for requests whose user-agent string contains "Marginalia Search". Look for recurring passes that revisit changed pages and discover new ones. Because Marginalia Search does not publish a verification method, any client can claim its identity and a log match is only a clue.