What powers jff.de?
Last seen Aug 2026 · 54 technologies across 20 categories
Analytics
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Mobile frameworks
Page builders
Performance
Photo galleries
Programming languages
Security
UI frameworks
Video players
Web servers
Webmail
WordPress plugins
WordPress themes
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
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| brockling | #58 | 0 |
| supportive design | #58 | 0 |
| truthtellers | #75 | 0 |
| sebastian ring | #42 | 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 robots.txt, all AI crawlers allowed
Audience
- 52% phone
- 48% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
7.03 / 10 · ranked #36,967 of all domains
555 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
4 keywords in Google's top 30
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 6.5 MB · 49 requests
- Structured data: Microdata, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Similar sites
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Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- JFF-Institut für Medienpädagogik in Forschung und Praxis
- Founded: 1949
- Country: Germany
From Wikidata (CC0).
Infrastructure
- DNS: z3c.net
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 51,814, 46 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kinder.jff.de | 24 |
| digid.jff.de | 23 |
| fakefrei.jff.de | 19 |
| act-on.jff.de | 17 |
| games.jff.de | 15 |
| demokratie.jff.de | 11 |
| www.jff.de | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Divi Aug 2026
- detected Bricks Jul 2026
- detected Modern Image Formats Jul 2026
- detected Performance Lab Jul 2026
- detected Slim SEO Jul 2026
- detected Speculative Loading Jul 2026
- detected Tailwind CSS Jul 2026