posteo.de
Email green, secure, simple and ad-free - posteo.de -
Last scanned Aug 1, 2026, 4:00 AM · 12 views
Overall score
Great
Summary
Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. This website uses Apache. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. Our email accounts, calendars and address books can be synchronised - we use comprehensive encryption.
Top issues to fix
8 issues found
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
244 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-2 overall since Jul 25, 2026
- Overall
- 87
- SEO
- 65
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. Our email accounts, calendars and address books can be synchronised - we use comprehensive encryption.
Meta tags
- Title
- Email green, secure, simple and ad-free - posteo.de -
- Description
- Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. Our email accounts, calendars and address books can be synchronised - we use comprehensive encryption.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://posteo.de/site.webmanifest
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
- DigiCert Inc
- Subject
- posteo.de
- Valid from
- Feb 18, 2026
- Valid to
- Feb 24, 2027
- Days until expiry
- 207
- SAN domains
- posteo.de, www.posteo.de, lists.posteo.de, mta-sts.posteo.de, api.posteo.de, cdn.posteo.de, autoconfig.posteo.de
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 9 · H3 18
Links
41 internal · 28 external · 20 broken
Images
47 total · 0 missing alt
Scripts / Styles
17 scripts · 4 stylesheets
JS / CSS size
78 B · 0 B
Page size
64.8 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://posteo.de
- Final URL
- https://posteo.de/en
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 243 ms
- HTML size
- 64.8 KB
- Redirect chain
- https://posteo.de → https://posteo.de/en
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Frequently asked questions
- What technology does posteo.de use?
- posteo.de is built with Apache.
- Is posteo.de secure (HTTPS)?
- Yes. posteo.de uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Feb 24, 2027.
- Who hosts posteo.de?
- Hosting provider information for posteo.de is not available yet.
- What is posteo.de's SEO score?
- posteo.de scored 65/100 for SEO in the latest analysis (fair).
- What is posteo.de's overall website score?
- posteo.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- Has posteo.de's score changed over time?
- posteo.de's overall score has declined by 2 points (from 89 to 87) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card