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Marginalia Search

GoodBotVerifiedBOT

Marginalia Search is a noncommercial niche search engine focusing on old websites, personal websites, and blogs that suffer crippling discoverability problems in today's fiercely SEO-optimized lanscape. Operated by Marginalia.

GoodBot
Assessment
Search Engine Crawler
Category
BOT
Kind
1
Data sources
AI-generated summary, drawn from Cloudflare, operator docs, and community data

What is Marginalia Search?

Marginalia Search is a web crawler operated by Marginalia. Marginalia Search is a noncommercial niche search engine focusing on old websites, personal websites, and blogs that suffer crippling discoverability problems in today's fiercely SEO-optimized lanscape. As a search engine crawler, it systematically indexes web pages to build and maintain search engine results.

Helpful — Verified, safe crawler. Respects robots.txt and provides operator documentation.

Identification

Bot name
Marginalia Search
Operator
Marginalia
Category
Search Engine Crawler
Kind
BOT
Verification
Verified bot
Cloudflare slug
marginaliabot
User-agent patterns
search.marginalia.nu
User-agent string
search.marginalia.nu
Main use cases
Web page indexingSearch result rankingContent discoverySitemap processing

Why it crawls your site

Marginalia Search crawls websites to index web pages and build search engine results. It is operated by Marginalia as part of their search engine infrastructure. If you see this bot in your server logs, it is a verified crawler and generally safe.

Block or allow Marginalia Search

Block it

Add a Disallow rule for search.marginalia.nu in your robots.txt file. You can also block at the server level using your web server configuration or CDN firewall rules to filter requests matching the user-agent string.

# Block Marginalia Search from crawling your entire site
User-agent: search.marginalia.nu
Disallow: /

# Allow Marginalia Search full access
User-agent: search.marginalia.nu
Allow: /
Allow & verify

Ensure your robots.txt allows search.marginalia.nu. Verify requests are genuine by checking the user-agent string and referring to Marginalia's documentation.

Traffic & trends

Cloudflare Radar traffic

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Google Trends interest

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Data sources

This profile is compiled from the following sources.

CloudflareRadar
Last updated July 21, 2026