What powers 
viessmann.id?
Last seen Sep 2026 · 11 technologies across 9 categories
Analytics
Google Analytics
since Oct 2024
Matomo Analytics
since Apr 2024
CMS
Adobe Experience Manager
since Dec 2021
Cookie compliance
Usercentrics
since Dec 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2023
Programming languages
Java
since Dec 2021
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Dec 2021
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Indonesia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.92 / 10 · ranked #632,923 of all domains
47 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Indonesian (Indonesia)
- CDN: Akamai
- Weight: 1.1 MB · 55 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: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 17,483,513, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped core-js Jul 2026
- dropped Microsoft Advertising Jul 2026
- detected Google Tag Manager Mar 2026