SEARCH ENGINE · OWN INDEX

What is Marginalia Search?

Marginalia Search is a search engine; the sources read do not record who runs it. It runs its own index. No structured data support is documented in the pages read. Its pages do not limit it to listed countries. The research lists one crawler token for it: search.marginalia.nu.

Last checked November 10, 2026 · 3 sources

Type: Search engine
Run by: Not recorded in the sources read
Results come from: Its own index
Recorded markets: Not limited to listed countries in its pages
Where its share is highest: StatCounter does not track Marginalia Search.
Share, worldwide: StatCounter does not track Marginalia Search.
Structured data formats: None documented
Rich result types: None on record

Who runs it

The operator is not recorded in the sources read for this research.

marginalia-search.com

Where does Marginalia Search get its results?

Marginalia describes its own crawler and its own small index, which does not claim to be complete^[2]. No syndication is described. The crawler respects robots.txt and publishes its IP addresses^[2].

Engines that use results from Marginalia Search

The research records no engine that takes its general results from Marginalia Search or is built on it by the same company.

Named by other engines in a narrower role: Kagi (a named specialized source)^[1].

Which countries use Marginalia Search?

StatCounter does not track Marginalia Search. None of the labels in its search engine figures for October 2026 maps to Marginalia Search in this research. StatCounter Global Stats

Recorded markets

The research records no country limit for Marginalia Search: its pages do not limit it to listed countries.

Does Marginalia Search use structured data?

The research records no documented support for any structured data format for Marginalia Search.

Structured data formats for Marginalia Search
Format	Documented support	What the research records
JSON-LD	Not documented	Not documented as parsed. A 2022 post by the author notes that publish dates appear on the web in JSON-LD, Microdata, RDFa and Open Graph, but does not say the engine reads them.^[3]
Microdata	Not documented	Not documented as parsed. A 2022 post by the author notes that publish dates appear on the web in JSON-LD, Microdata, RDFa and Open Graph, but does not say the engine reads them.^[3]
RDFa	Not documented	Not documented as parsed. A 2022 post by the author notes that publish dates appear on the web in JSON-LD, Microdata, RDFa and Open Graph, but does not say the engine reads them.^[3]
Open Graph	Not documented	Not documented as parsed. A 2022 post by the author notes that publish dates appear on the web in JSON-LD, Microdata, RDFa and Open Graph, but does not say the engine reads them.^[3]
Microformats	Not documented	Not documented on the first-party pages fetched.^[2]
Twitter Cards	Not documented	Not documented on the first-party pages fetched.^[2]

“Not documented” means the pages read do not say; it does not mean the format is ignored.

Rich resultsThe research records no rich result type for Marginalia Search.

How does Marginalia Search crawl the web?

The research lists 1 crawler token for Marginalia Search: the names a site uses in robots.txt rules, with what each one does where the source says.

search.marginalia.nu^[2]

How do I test my markup for Marginalia Search?

The research records no markup testing tool of its own for Marginalia Search.

Inject the World

Test a page for Marginalia Search

See what the research records for Marginalia Search against the structured data on your page.

Test a page

Site ownersThe research records no guidelines or vocabularies of its own for Marginalia Search.

What could not be verified?

These claims about Marginalia Search came up in the research, but no page that could be read confirms them. They are kept apart, and nothing above rests on them.

Marginalia reads datePublished or article:published_time from page markup to date documents.
Why it is open: The post describes where dates can be found on the web but does not state that the engine parses them.
How it was checked
Source 3 read in full; https://www.marginalia.nu/release-notes/v2024-01-0/ (read, no structured data mention).

Sources

The pages the research used for Marginalia Search, numbered as cited above. Accessed November 10, 2026 unless shown.

1.Search Sources | Kagi's Docs · Kagi
2.For Webmasters · Marginalia
3.Carbon Dating HTML · Marginalia · updated October 27, 2022

Market share figures: StatCounter Global Stats, search engine market share, October 2026, licensed CC BY-SA 3.0.