What powers 
sievert.se?
Last seen Aug 2026 · 33 technologies across 18 categories
Advertising
Microsoft Advertising
since Oct 2024
Analytics
Google Analytics
since Jan 2019
CMS
Cookie compliance
Databases
MySQL
since Jan 2019
Font scripts
Font Awesome
since Jul 2025
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Debian
since Jun 2020
PaaS
Performance
Priority Hints
since Jul 2025
Programming languages
PHP
since Jan 2019
Security
HSTS
since Jul 2025
UI frameworks
Tailwind CSS
since Jul 2025
Web servers
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
TablePress
since Feb 2022
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 Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 65% phone
- 35% desktop
United Kingdom
Sweden
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.44 / 10 · ranked #960,883 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 175 ms |
| CLS | 0.1 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Netlify
- Weight: 0.9 MB · 48 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (3.33.186.135)
- DNS: Azure DNS
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 11,556,790, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sievert.se | 19 |
| www.sievert.se | 16 |