What powers 
viessmann.com.tr?
Last seen Sep 2026 · 26 technologies across 16 categories
Analytics
CDN
CMS
Cookie compliance
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
Programming languages
Security
Tag managers
UI frameworks
Web servers
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Oct 2026.
Training crawlers
- GPTBot Allowed
The other 32 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 *: Restricted (was Allowed)
- Sep 2026 gptbot added to robots.txt
- Sep 2026 *: Allowed (was Restricted)
- Sep 2026 gptbot removed from robots.txt
- Sep 2026 *: Restricted (was Allowed)
- Sep 2026 gptbot added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 72% phone
- 28% desktop
Türkiye
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.09 / 10 · ranked #510,070 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Turkish
- CDN: Akamai
- Weight: 1.3 MB · 67 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ASN-TSI-IAS Internet and VPN Service Provider (93.122.86.52)
- DNS: ns14.net
- Email: Proofpoint Essentials
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 14,570,699, 7 hosts
- Verified with: Google, Meta Business, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| yetkili-bayi.viessmann.com.tr | 14 |
| yetkili-servis.viessmann.com.tr | 13 |
| www.viessmann.com.tr | 11 |
| serviskayit.viessmann.com.tr | 6 |
Full technology history →
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Recent changes
- dropped Microsoft Advertising Jun 2026
- detected Google Tag Manager Mar 2026