What powers 
jena.de?
Last seen Aug 2026 · 143 technologies across 37 categories
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Microsoft Advertising
since May 2025
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since Jul 2026
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since Jan 2019
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since May 2022
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since Dec 2025
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since Jan 2019
Google Font API
since May 2017
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since Jun 2021
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since Jan 2019
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since Jan 2019
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JavaScript graphics
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since Nov 2024
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since Jun 2023
Browser-Update.org
since Aug 2022
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since Aug 2022
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since Aug 2021
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since Sep 2022
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since Sep 2024
Isotope
since Jul 2021
Lazy.js
since Dec 2019
OWL Carousel
since Oct 2020
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since Jan 2023
prettyPhoto
since May 2022
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since Oct 2020
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since Dec 2019
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since Jun 2023
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since Apr 2019
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since Feb 2019
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since Aug 2023
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since Feb 2022
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since Mar 2020
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CKEditor
since Apr 2020
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since Sep 2025
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Cloudflare Bot Management
since Jun 2023
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since Sep 2022
Really Simple SSL & Security
since Apr 2024
reCAPTCHA
since Feb 2019
SEO
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Matomo Tag Manager
since Jun 2023
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Ruby on Rails
since Dec 2022
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Apple iCloud Mail
since Jan 2023
RoundCube
since Jul 2025
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since Sep 2022
Elementor Header & Footer Builder
since Jan 2023
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since Jun 2023
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since Jan 2025
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since Aug 2025
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since Feb 2022
wpBakery
since Feb 2022
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Colorlib Sparkling
since Aug 2025
SpiceThemes SpicePress
since Feb 2022
Theme4Press Evolve
since Feb 2022
Twenty Fifteen
since Sep 2025
Twenty Fourteen
since Feb 2022
Twenty Seventeen
since Mar 2022
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Blocked (was Restricted)
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
All crawlers blocked
Audience
- 88% phone
- 9% desktop
- 3% tablet
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
7.02 / 10 · ranked #42,083 of all domains
655 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 1.0 MB · 30 requests
- WordPress theme: customizr (child: mz) · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Jena
- Industry: Arts and entertainment (declares
Event) - Country: Germany
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. (195.37.112.162)
- DNS: domaindiscount24.net
- Email: jena.de
- Email security: SPF (hard fail), DMARC monitor only
- SSL: HARICA, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 29,983, 218 hosts
- Verified with: Apple Business, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| eag.jena.de | 25 |
| igs.jena.de | 23 |
| visit-stage.jena.de | 23 |
| mz.jena.de | 22 |
| suedschule.jena.de | 22 |
| cz-gymnasium.jena.de | 21 |
| mitmachen.jena.de | 21 |
| montessorischule.jena.de | 21 |
| schillerschule.jena.de | 21 |
| www.sbsz.jena.de | 21 |
| angergymnasium.jena.de | 20 |
| heinrich-heineschule.jena.de | 19 |
| rautalschule.jena.de | 19 |
| reichweingymnasium.jena.de | 19 |
| www.angergymnasium.jena.de | 18 |
| jenaplanschule.jena.de | 17 |
| westschule.jena.de | 17 |
| kaleidoskop.jena.de | 16 |
| mefa.jena.de | 16 |
| nordschule.jena.de | 16 |
| cloud.jena.de | 15 |
| triessnitzschule.jena.de | 15 |
| www.eag.jena.de | 15 |
| blog.jena.de | 14 |
Full technology history →
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Recent changes
- detected Recent Posts Widget With Thumbnails Aug 2026
- detected Chart.js Mar 2026
- dropped WP-Optimize Jan 2026
- dropped FingerprintJS Nov 2025
- dropped Google AdSense Nov 2025
- dropped jQuery CDN Nov 2025
- dropped Smash Balloon Instagram Feed Nov 2025