threema.ch
Threema – Secure Communication For Individuals and Companies
Last scanned Jul 29, 2026, 1:00 PM · 6 views
Overall score
Excellent
Summary
The secure instant messenger from Switzerland. This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
The secure instant messenger from Switzerland. GDPR-compliant messaging for individuals and organizations that value privacy, security and data protection.
Top issues to fix
5 issues found
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
539 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+2 overall since Jul 18, 2026
- Overall
- 90
- SEO
- 75
- Security
- 100
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
The secure instant messenger from Switzerland. GDPR-compliant messaging for individuals and organizations that value privacy, security and data protection.
Meta tags
- Title
- Threema – Secure Communication For Individuals and Companies
- Description
- The secure instant messenger from Switzerland. GDPR-compliant messaging for individuals and organizations that value privacy, security and data protection.
- Canonical
- https://threema.com/en
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.threema.com
- Valid from
- Jun 29, 2026
- Valid to
- Jan 13, 2027
- Days until expiry
- 168
- SAN domains
- *.threema.com, threema.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 14
Links
83 internal · 21 external · 20 broken
Images
247 total · 0 missing alt
Scripts / Styles
6 scripts · 2 stylesheets
JS / CSS size
823 B · 1.3 KB
Page size
584 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://threema.ch
- Final URL
- https://threema.com/en
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 528 ms
- HTML size
- 584 KB
- Redirect chain
- https://threema.ch → https://threema.com/ → https://threema.com/en
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Frequently asked questions
- What technology does threema.ch use?
- threema.ch is built with Nginx.
- Is threema.ch secure (HTTPS)?
- Yes. threema.ch uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 13, 2027.
- Who hosts threema.ch?
- Hosting provider information for threema.ch is not available yet.
- What is threema.ch's SEO score?
- threema.ch scored 75/100 for SEO in the latest analysis (fair).
- What is threema.ch's overall website score?
- threema.ch has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has threema.ch's score changed over time?
- threema.ch's overall score has improved by 2 points (from 88 to 90) since Jul 18, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card