What powers 
gruner.ch?
Last seen Aug 2026 · 17 technologies across 9 categories
JavaScript libraries
Miscellaneous
PaaS
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- CCBot Allowed
- ClaudeBot Allowed
- GPTBot Allowed
Search and AI assistants
- Amazonbot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 28 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| gruner ag | #1 | 12 |
| gruner | #44 | 2 |
| roche tower building 1 | #11 | 1 |
| sihlcity | #35 | 1 |
| small hydro electric system | #71 | 1 |
| nurek dam | #27 | 1 |
| basel fc stadium | #30 | 0 |
| bank of zurich | #28 | 0 |
| nergie olienne | #72 | 0 |
| zrich stadelhofen railway station | #90 | 0 |
| zrich stadelhofen railway station | #58 | 0 |
| zurich cantonal bank | #21 | 0 |
| zurich canton bank | #27 | 0 |
| bossard arena zug | #34 | 0 |
| cantonal bank of zurich | #20 | 0 |
| ceva station | #66 | 0 |
| concrete alkali silica reaction | #81 | 0 |
| swiss hydropower | #82 | 0 |
| swiss arena | #31 | 0 |
| tragwerksplanung | #15 | 0 |
| what is pls cadd | #30 | 0 |
| bahnhofstrasse 45 zurich | #13 | 0 |
| bahnhofstrasse 45 8001 zrich | #52 | 0 |
| roggwil ch | #33 | 0 |
| roggwil | #21 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 59% desktop
- 41% phone
Switzerland
Germany
France
Italy
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.38 / 10 · ranked #175,045 of all domains
131 referring domains · OpenPageRank
Search traffic
18 est. monthly organic visits (US)
48 keywords in Google's top 30
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 10.5 MB · 65 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Gruner AG
- Founded: 1862
- Sector: engineer
From Wikidata (CC0).
Infrastructure
- Hosted on AS-TINEO Internet Service Provider - Switzerland (193.108.137.35)
- DNS: Azure DNS
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, CAA
- SSL: Let's Encrypt, RSA 3072, expires Nov 2026
- Common Crawl link graph: rank 1,185,878, 7 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted