Articles on Technical SEO
All articles from Heistermann Solutions, page 2 of 2.
Hreflang for DACH: Separating Germany, Austria and Switzerland
How hreflang tags tell Google which page version is meant for Germany, Austria and Switzerland, with correct syntax and the most common mistakes.
Open Graph in 2026: Why Shared Links Often Look Broken
Which Open Graph and Twitter Card tags are mandatory, why a missing og:image is the costliest one-line mistake on the web, and how to test previews.
Page Experience in 2026: Why Real User Data Wins, Not a Lab Test
Page Experience runs on field data from real visitors, not a Lighthouse score. The signals, the correct target values, and why it is mostly a tie-breaker.
Lighthouse vs. PageSpeed Insights: A Score of 100 Proves Nothing
Why a perfect Lighthouse score says nothing about rankings, what actually separates lab and field data, and which tool is responsible for what.
Internal Linking 2026: Architecture for Google and AI Crawlers
How a hub-and-spoke structure, clear anchor text and a deliberate link architecture make your website equally legible to Google and AI search systems.
HTTPS Is Not Enough: HSTS, Certificate Transparency and HTTP/3
Why HTTPS alone does not protect against downgrade attacks, why HSTS preload is practically irreversible, and what HTTP/3 actually delivers.
JavaScript SEO 2026: How React and Next.js Sites Rank Safely
How Google and AI crawlers actually process JavaScript sites in 2026, which rendering strategy fits which type of page, and how to check it yourself.