---
title: "Christof Bartel (@nalqerio) | Hashnode"
description: "Owner of Nalqerio. Writing about AI visibility, evidence and technical SEO. Read the latest articles by Christof Bartel on Hashnode."
url: "https://hashnode.com/@nalqerio"
---

@nalqerio

# Christof Bartel

@nalqerio · Joined October 2026

Owner of Nalqerio. Writing about AI visibility, evidence and technical SEO.

### [A small regression check for Organization JSON-LD](https://nalqerio.hashnode.dev/a-small-regression-check-for-organization-json-ld?utm_source=hashnode&utm_medium=feed)

Catch stale Organization JSON-LD fields with a local Python check, then review visible evidence. Includes tested examples and validation limits.

5 min read · [nalqerio.hashnode.dev](https://nalqerio.hashnode.dev/a-small-regression-check-for-organization-json-ld?utm_source=hashnode&utm_medium=feed)

[Oct 11](https://hashnode.com/posts/a-small-regression-check-for-organization-json-ld/6acb6f09401e2833cdfa91cf)