What powers a1.com?
Last seen Jun 2026 · 48 technologies across 24 categories
Accessibility
AccessiBe
since Dec 2025
Analytics
BugSnag
since Dec 2025
Matomo Analytics
since Dec 2025
Caching
WP Rocket
since Mar 2020
CDN
Cloudflare
since May 2022
CMS
Cookie compliance
OneTrust
since Aug 2022
Databases
Mailgun
since Sep 2022
Font scripts
Font Awesome
since Dec 2025
Google Font API
since Mar 2020
Hosting
WordPress Multisite
since Sep 2023
Issue trackers
Sentry
since Dec 2025
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Dec 2025
Programming languages
Security
Cloudflare Bot Management
since May 2022
HSTS
since Sep 2022
SEO
Tag managers
Google Tag Manager
since May 2020
UI frameworks
Bootstrap
since Apr 2026
Tailwind CSS
since Apr 2022
Video players
Vimeo
since Nov 2021
Web frameworks
Microsoft ASP.NET
since Apr 2026
Web servers
WordPress plugins
Smash Balloon Instagram Feed
since Oct 2022
Audience
- 62% phone
- 38% desktop
Austria
Bulgaria
North Macedonia
India
Germany
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.90 / 10 · ranked #648,813 of all domains
87 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0.15 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 3.6 MB · 67 requests
- WordPress theme: a1-group · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| jobs.a1.com | 24 |
| a1.com | 20 |
| a1-lehre.a1.com | 15 |
| lehre.a1.com | 13 |
| newsroom.a1.com | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Microsoft 365 May 2026
- detected BugSnag Dec 2025
- detected DataTables Dec 2025
- detected Font Awesome Dec 2025
- detected lit-html Dec 2025
- detected OneTrust Dec 2025
- detected Priority Hints Dec 2025
- detected SweetAlert2 Dec 2025
- detected Tailwind CSS Dec 2025