What powers ophtec.com?
Last seen Sep 2026 · 41 technologies across 20 categories
Analytics
CDN
CMS
Cookie compliance
Databases
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Marketing automation
Miscellaneous
Operating systems
Programming languages
Security
SEO
Tag managers
UI frameworks
Web servers
WordPress plugins
AI Crawlers
Blocks 6 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- AI2Bot Blocked
- Bytespider Blocked
- CCBot Blocked
- cohere-training-data-crawler Blocked
- FacebookBot Blocked
- ImagesiftBot Blocked
The other 27 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 ai2bot added to robots.txt
- Sep 2026 bytespider added to robots.txt
- Sep 2026 ccbot added to robots.txt
- Sep 2026 cohere-ai added to robots.txt
- Sep 2026 facebookbot added to robots.txt
- Sep 2026 imagesiftbot added to robots.txt
AI Crawlers
6 of 33 AI crawlers blocked
Audience
- 54% phone
- 46% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.82 / 10 · ranked #1,932,101 of all domains
36 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 4.1 MB · 95 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Ophtec (Netherlands)
- Founded: 1983
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (199.60.103.88)
- DNS: argewebhosting.eu
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 14,056,277, 10 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| es.ophtec.com | 28 |
| usa.ophtec.com | 28 |
| www.ophtec.com | 21 |
| vacancies.ophtec.com | 12 |
| calculator.ophtec.com | 11 |
Full technology history →
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Recent changes
- detected reCAPTCHA Nov 2025