slf.ch

Scanned URL: https://slf.ch

📅 Scan completed: April 16, 2026 at 8:15 AM

58
/ 100
D
Below Avg
Overall Domain Score
SEO 62 · LLM 45 · Perf 64
62

🔍 SEO Score

8 / 13 checks passed

45

🤖 LLM Readiness

5 / 11 checks passed

64

⚡ Performance

7 / 11 checks passed

📝 Extracted Page Tags
Title Tag
WSL-Institut für Schnee- und Lawinenforschung SLF
Meta Description
Das WSL-Institut für Schnee- und Lawinenforschung SLF ist Teil der Eidg. Forschungsanstalt WSL und gehört damit zum ETH-Bereich. Seine Aufgaben sind Forschung und wissenschaftliche Dienstleistungen rund um Schnee, Lawinen, weitere alpine Naturgefahren, Permafrost und Gebirgsökosysteme. Seine bekannteste Dienstleistung ist das Lawinenbulletin.
H1 Heading
None found
Canonical URL
https://www.slf.ch/de/
🔍 SEO Audit
62/100
✅ Title Tag
Length: 49 chars (Ideal: 30-60).
❌ Meta Description
Length: 344 chars (Ideal: 50-160).
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
✅ Canonical URL
Canonical URL is set.
✅ Open Graph Tags
Found 8 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
10 of 17 images missing alt.
❌ Sitemap
No sitemap found in robots.txt.
❌ Heading Hierarchy
Missing H1 or H2 tags.
✅ Internal Links
Found 47 internal links.
✅ HSTS Security
HSTS header present.
✅ HTTPS
Loads securely over HTTPS.
🤖 LLMO
45/100
❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
✅ Contextual Summary
Description provides good AI context.
❌ E-E-A-T (Author)
No author meta or schema.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
✅ AI Crawler Access
AI agents not blocked.
✅ Language Declaration
Language set to 'de-CH'.
✅ Semantic Structure
Uses <main> or <article>.
✅ Entity Verification Links
Social/publisher profiles linked.
Performance
64/100
Network Waterfall (Total: 1826ms)
  • DNS: 0ms
  • Connect: 0ms
  • TTFB: 157ms
  • Download: 1669ms
✅ Time to First Byte (TTFB)
TTFB: 157ms (Target: < 600ms).
✅ HTML Payload Size
Raw HTML: 9.2KB (Target: < 150KB).
✅ Text Compression
Compression enabled (gzip).
✅ Cache Policies
Cache-Control headers set.
❌ CDN Usage
No CDN headers found.
✅ Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
✅ Native Lazy Loading
Images use loading='lazy'.
❌ Minified Assets
No minified assets linked.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean
✅ Domain is clean.
✅ Spamhaus DBLVerify ↗
Lookup inconclusive — use the Verify link to check manually.
✅ SURBLVerify ↗
Not listed — no threats detected.
✅ URIBLVerify ↗
Not listed — no threats detected.
✅ Google Safe BrowsingVerify ↗
No unsafe content found per Google Safe Browsing.
⚙️ Technologies
E-Commerce
Magento
CSS Frameworks
Font Awesome
Infrastructure & CDN
Apache
📋 WHOIS

WHOIS unavailable.

🔗 DNS Records
TypeValue
A195.176.244.8
MXslf-ch.mail.protection.outlook.com
TXTapple-domain-verification=U4Z1RvSQHxftVZ1W
TXT_89j2hgg1sdx0dv1dy0xce6xjx0hu1q1
TXTv=spf1 ip4:195.176.245.10 ip4:193.134.202.239 ip4:195.176.244.204 ip4:152.88.120.150 ip4:152.88.121.41 ip4:152.88.50.100 include:spf1.refline.ch include:spf.protection.outlook.com include:mailgun.org ~all
TXT_cx37rvh8pa3kw8lotyiw55nvq6expfd
TXTZOOM_verify_RSz3fPTDRxWkGMwPUdxdEw
NSscsnms.switch.ch
NSns2.slf.ch
NSns1.slf.ch

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