---
type: Article
title: "Web Standards Reference for Technical SEO"
description: "Reference for the RFCs and W3C specs behind technical SEO — HTTP, URI, robots.txt, sitemaps, HTML, JSON-LD, hreflang, performance — with SEO impact noted."
resource: "https://prerendering.com/blog/web-standards-reference-for-technical-seo"
tags: [web standards, rfc, w3c, whatwg, technical seo, reference]
timestamp: 2026-04-25T00:00:00Z
---

# Web Standards Reference for Technical SEO

Reference for the RFCs and W3C specs behind technical SEO — HTTP, URI, robots.txt, sitemaps, HTML, JSON-LD, hreflang, performance — with SEO impact noted.

A complete web standards reference for technical SEO citing RFC 9110, RFC 3986, RFC 9309, sitemaps.org, WHATWG HTML, schema.org, JSON-LD, BCP 47, RFC 6265, and the W3C Web Performance APIs, with practical SEO implications for each.

## Details

- Category: Technical SEO
- Reading time: 14 min
- Topics: Web Standards, RFC, W3C, WHATWG, Technical SEO, Reference

## Related

- [HTTP Status Codes for SEO and Crawlers](/blog/http-status-codes-for-seo-and-crawlers.md)
- [XML Sitemap Guide for Technical SEO](/blog/xml-sitemap-guide-for-technical-seo.md)
- [International SEO and Hreflang for Modern Frameworks](/blog/international-seo-and-hreflang-for-modern-frameworks.md)
- [Technical SEO audit](/services/technical-seo-audit.md)