What powers sefa.nl?
Last seen Aug 2026 · 19 technologies across 13 categories
Analytics
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Ecommerce
Google Workspace
since Aug 2022
Mailgun
since Aug 2022
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Jan 2019
SEO
Web servers
Nginx
since Jan 2019
WordPress plugins
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 68% desktop
- 32% phone
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.36 / 10 · ranked #2,764,430 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 1.8 MB · 39 requests
- WordPress theme: ecs-base-framework (child: ecs-sefa) · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CYSO-AS (93.94.230.70)
- DNS: TransIP
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 10,855,419, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted