What powers rwb-essen.de?
Last seen Sep 2026 · 25 technologies across 16 categories
CMS
Databases
MySQL
since Mar 2020
Font scripts
Google Font API
since Mar 2020
Twitter Emoji (Twemoji)
since Mar 2020
JavaScript frameworks
Stimulus
since May 2024
JavaScript libraries
Lightbox
since Mar 2020
prettyPhoto
since Mar 2020
Miscellaneous
Operating Systems
Debian
since Sep 2023
Windows Server
since Apr 2020
Page builders
Divi
since Nov 2021
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Mar 2020
Security
HSTS
since Sep 2023
Video players
Web Application Frameworks
Microsoft ASP.NET
since Apr 2020
Web Servers
Webmail
Apple iCloud Mail
since Dec 2023
WordPress plugins
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.02 / 10 · ranked #1,557,211 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 18.6 MB · 55 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- RWB Essen (Rheinisch-Westfälisches Vocational College Essen on Wikidata)
- Founded: 1978
- Country: Germany
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on ASDOKOM (85.22.181.254)
- DNS: iserv.eu
- Email: rwb-essen.de
- Email security: SPF (neutral), no DMARC record, CAA
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Oct 2026
- Common Crawl link graph: rank 9,750,528, 4 hosts
- Verified with: Apple Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.rwb-essen.de | 17 |
| www1.rwb-essen.de | 12 |
| rwb-essen.de | 4 |