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Pillar · Topic cluster

Technical SEO war stories

What broke, why, and how I fixed it. The localhost canonical that killed my indexing. The GSC inspection that lied. The schema that validated but didn't show in search. The stuff that's hard to find on the internet because nobody publishes their scars.

What this pillar covers

technical-seocanonical-urlscanonicalindexingschemaschema-markupredirectssitemap

Companion tool

Canonical URL Checker

Paste any URL, see what canonical it serves right now. The companion to half the posts in this pillar.

10

posts

Newest first

Automating internal link audits with 50 lines of Python and Claude
Jun 9, 2026
6 min

Automating internal link audits with 50 lines of Python and Claude

The internal link audit is one of the most valuable SEO tasks nobody does — because doing it by hand on a 100-page site takes a day. Here's the 50-line Python script + Claude prompt combo that runs it in 4 minutes.
ai-automationautomationtechnical-seopythoninternal-links
Meta Tags for SEO and Social Sharing: The Complete Guide
Jun 9, 2026
7 min

Meta Tags for SEO and Social Sharing: The Complete Guide

Most meta-tag advice is either a decade out of date or a copy-paste list with no opinions. Here's what actually moves rankings and link previews in 2026 — and what to stop wasting time on.
meta-tagsseoopen-graphtechnical-seosocial-sharing
Building a weekly SEO monitoring stack with AI (canonical, schema, sitemap, CWV)
Jun 4, 2026
7 min

Building a weekly SEO monitoring stack with AI (canonical, schema, sitemap, CWV)

You don't need Semrush, Ahrefs, and ContentKing combined. Here's the four-piece monitoring stack that catches the SEO bugs that matter — costs about €0 to run, alerts when something drifts, takes 15 minutes a week to review.
ai-automationautomationtechnical-seomonitoringseo-automation
How I rebuilt Booplex's indexing in 5 weeks after the localhost disaster
Jun 1, 2026
8 min

How I rebuilt Booplex's indexing in 5 weeks after the localhost disaster

A canonical URL bug pointed half my pages at localhost:3000 in production for 11 days before I caught it. Then a 5-week recovery to get back to fully indexed. The timeline, the fixes, the GSC charts, and the lessons.
case-studytechnical-seocanonicalindexinggsc
llms.txt: what it is, how to write one, and why most SEOs are still ignoring it
May 28, 2026
7 min

llms.txt: what it is, how to write one, and why most SEOs are still ignoring it

llms.txt is the AI-era robots.txt — a markdown file at your site root that tells LLMs what to read and what to skip. Here's what it actually does, how to write a real one, and the parts of the spec everyone gets wrong.
ai-opsllms-txtai-searchgeoai-citation
The GSC Coverage report is the most underrated free tool in SEO
May 22, 2026
6 min

The GSC Coverage report is the most underrated free tool in SEO

Everyone uses Search Console for queries and clicks. Almost nobody actually reads the Coverage report properly. It's the single best diagnostic in SEO and it's free. Here's what's in it, how to read it, and the bug patterns it catches.
technical-seogscgoogle-search-consoleindexingdiagnostic
ISR, SSG, SSR — which one actually helps SEO in 2026?
May 21, 2026
6 min

ISR, SSG, SSR — which one actually helps SEO in 2026?

Three rendering strategies. Different trade-offs. Different SEO implications. Here's the honest breakdown for Next.js sites in 2026 — what Googlebot sees, what Core Web Vitals look like, and which to pick for which page type.
technical-seonextjsisrssgssr
The 5 technical SEO leaks that quietly kill indexing (and how to plug each one)
May 20, 2026
6 min

The 5 technical SEO leaks that quietly kill indexing (and how to plug each one)

Most indexing disasters aren't dramatic. They're slow leaks — five common technical SEO bugs that bleed indexed pages over weeks. Here's each one, why it's so easy to miss, and the 10-minute fix.
technical-seoindexingcanonical-urlsschemasitemap
Why GSC URL Inspection lies about your canonical URL (and how to actually check)
May 12, 2026
5 min

Why GSC URL Inspection lies about your canonical URL (and how to actually check)

Google Search Console URL Inspection shows two canonicals. Most people only notice one. That gap is where indexing problems hide.
technical-seocanonical-urlsgoogle-search-consoleindexing
How I Fixed Canonical URLs Pointing to Localhost in Next.js
Apr 5, 2026
10 min

How I Fixed Canonical URLs Pointing to Localhost in Next.js

My portfolio site had zero indexed pages for 5 weeks. Every canonical URL pointed to localhost:3000. Here's the 13-file grep audit, the 18-line fix, and how to check your own site.
nextjsseocanonical-urlsgoogle-search-consoledebugging