What powers 
werner-mertz.de?
Last seen Sep 2026 · 22 technologies across 14 categories
Caching
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Security
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Web servers
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AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| werner-mertz gmbh | #1 | 15 |
| werner und mertz | #1 | 15 |
| werner mertz gmbh | #1 | 15 |
| mertz | #90 | 8 |
| calculator green | #98 | 1 |
| werner and mertz | #8 | 1 |
| werner and mertz | #88 | 0 |
| recyclate | #18 | 0 |
| germany frog fences | #76 | 0 |
| german frog | #69 | 0 |
| frosch german | #45 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 26% desktop
Germany
Austria
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.30 / 10 · ranked #200,948 of all domains
154 referring domains · OpenPageRank
Search traffic
55 est. monthly organic visits (US)
11 keywords in Google's top 30
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German (Germany)
- Weight: 0.5 MB · 42 requests
- WordPress theme: wum · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Werner & Mertz
- Founded: 1876
- Industry: News and media (declares
NewsArticle) - Sector: chemical industry, Manufacture of other chemical products n.e.c.
- Country: Germany
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Hetzner (94.130.26.80, IPv6)
- DNS: udag.de
- Email: udag.de
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 643,510, 9 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.werner-mertz.de | 18 |
| sl.werner-mertz.de | 16 |
| werner-mertz.de | 15 |
| news.werner-mertz.de | 11 |
| detvo.werner-mertz.de | 4 |
Full technology history →
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