canonicalization SKILL.md skillA

canonicalization from afeezadebayo/technical-seo-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add afeezadebayo/technical-seo-skills/canonicalization@v1.1.0

Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
afeezadebayo/technical-seo-skills
Path
canonicalization/SKILL.md
Versions recorded
1
Latest version
v1.1.0, committed Oct 18, 2026
Size
12,125 bytes
Repository stars
2
License
MIT

Find duplicate and near-duplicate URLs and make Google and Bing choose the canonical you want, by aligning rel=canonical, redirects, internal links, sitemaps, hreflang and parameter handling. Covers www and non-www, HTTP and HTTPS, trailing slashes, case, tracking and sort parameters, product paths inside collections, pagination, syndication, near-duplicate location or currency pages, and canonicals with hreflang. Use whenever someone mentions duplicate content, 'Google chose different…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Canonicalization and Duplicate Content

Google groups duplicate and near-duplicate URLs together and picks one as the canonical: the version it indexes, ranks and credits with signals. `rel="canonical"` is a strong hint in that choice, not a command. When your redirects, links, sitemaps and hreflang point one way and your canonical tag points another, Google decides for itself, and it often picks the URL you least want, such as a tracking-parameter version.

This skill makes every signal agree, so the URL you choose is the URL that ranks.

## Operating principles
1. **One preferred URL per piece of content,** decided once and written down (host, protocol, trailing slash, case, parameters).
2. **Signals must agree.** Redirects, canonicals, internal links, sitemaps and hreflang all point to the preferred URL.
3. **Use the strongest tool that fits.** If a duplicate has no reason to exist, redirect it. If people need it, canonicalise it.
4. **Different content isn't duplicate.** If two pages serve different needs, make them clearly different and let both stand.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add afeezadebayo/technical-seo-skills/canonicalization@sha256:a2edd2d020a90f7b

The line at the top of this page pins the label v1.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_lmkmtkqlmvvbu6rn.svg)](https://markdownregistry.com/a/art_lmkmtkqlmvvbu6rn)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 18, 2026.

versioncommittedcommitsizeaudit
v1.1.0 latest2026-10-18 21493be 12,125 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12125 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

afeezadebayo/technical-seo-skills · 2 stars · license MIT · pushed 2026-10-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_lmkmtkqlmvvbu6rn
GET https://markdownregistry.com/api/v1/resolve?ref=afeezadebayo/technical-seo-skills/canonicalization
GET https://markdownregistry.com/api/v1/blob/a2edd2d020a90f7bd5267cd89298d1c8bbb8a0e651478b935af06d43d35c4ebe

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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