Standards bodies
The RFC index
Every RFC ever published, with authors, dates, status and the obsoletes/updates graph between them — as one XML document.
It is a genuinely large document and a good test of anything that claims to stream: at 13 MB it is well past the point where loading a whole tree into memory is a reasonable default.
The obsoletes and updates relationships make it one of the few public XML documents where the interesting structure is a graph rather than a list.
- Publisher
- RFC Editor
- Host
www.rfc-editor.org- Format
- Not one of the formats we document
- Root when listed
- rfc-index (2026-08-18)
- Size when listed
- 13.1 MB
What the last check saw
Document is 5 MB, over the 5 MB limit.Checked 2026-08-18 16:02 UTCStructure
No structure to show — and rather than a table of dashes, this says so. Structure is recorded from a successful fetch and never copied from the entry above: a directory that describes documents it has not read is a directory that is wrong without knowing it.
Recent checks
- oversize2026-08-18 16:02 UTC
- oversize2026-08-18 16:01 UTC
Where it reaches
Also in this category
- The XML Schema schemaThe schema for schemas: XSD's own grammar, written in XSD, at the URI every schema document declares as its namespace.
- The sitemaps.org 0.9 schemaThe normative grammar for a sitemap — the one that says changefreq has eight permitted values and priority is capped at 1.0.
- IANA media type registryThe authoritative list of registered media types, including the application/xml and +xml conventions this whole site depends on.
- CLDR locale data for EnglishHow English formats dates, numbers, currencies and names — the locale data almost every operating system and language runtime is built on.
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