What powers sul.de?
Last seen Sep 2026 · 29 technologies across 16 categories
CMS
WordPress
since Mar 2020
Databases
MySQL
since Mar 2020
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Mobile frameworks
PaaS
Azure
since Aug 2022
Page builders
Divi
since Jun 2021
Performance
Priority Hints
since Feb 2024
Programming languages
PHP
since Mar 2020
SEO
UI frameworks
ZURB Foundation
since Feb 2024
Video players
Web servers
Apache HTTP Server
since Mar 2020
Webmail
Apple iCloud Mail
since Jan 2023
Microsoft 365
since Aug 2022
WordPress plugins
Borlabs Cookie
since Jun 2021
EventOn
since Feb 2024
WP Featherlight
since Mar 2023
WP Rocket
since Mar 2020
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
2.83 / 10 · ranked #1,909,738 of all domains
16 referring domains · OpenPageRank
Page
- Language: German
- Weight: 1.5 MB · 136 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Hetzner (78.46.3.56)
- DNS: Azure DNS
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,414,380, 4 hosts
- Verified with: Apple Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted