What technology does gnupg.org use?

We did not detect any specific technologies for gnupg.org in the latest scan.

Is gnupg.org secure (HTTPS)?

Yes. gnupg.org uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Oct 8, 2026.

gnupg.org is hosted on PLUSSERVER-ASN1 - PlusServer GmbH, DE.

What is gnupg.org's SEO score?

gnupg.org scored 55/100 for SEO in the latest analysis (fair).

What is gnupg.org's overall website score?

gnupg.org has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.

gnupg.org

The GNU Privacy Guard

Last scanned Jul 21, 2026, 12:33 PM · 1 view

Overall score

Fair

Top issues to fix

11 issues found · 3 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.

+5 more issues — details in the sections below.

Summary

This website is hosted on PLUSSERVER-ASN1 - PlusServer GmbH, DE. SEO is fair (55/100) and accessibility is good (75/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

SEO

6 issue(s) found

100

Performance

132 ms

Security

HTTPS & header checks

Accessibility

2 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Contact

Email, phone, and address published on this site's own pages.

Email: GnuPG@mstdn.social

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: PLUSSERVER-ASN1 - PlusServer GmbH, DE
CDN provider: —
IP address: 217.69.76.60
ASN: AS61157 (PLUSSERVER-ASN1 - PlusServer GmbH, DE)

DNS records

Type	Value
A	217.69.76.60
AAAA	2001:aa8:fff1:2100::60
MX	ellsberg.gnupg.com
TXT	v=spf1 ip4:176.9.119.14 ip6:2a01:4f8:151:7306::2 ip4:217.69.77.222 ip6:2001:aa8:fff1:100::22 ip4:217.69.76.57 ip6:2001:aa8:fff1:2100::57 -all google-site-verification=Gq2aZ5k9RMVbjgN3KLKksDoeJVLZ6cbcuqrNba3K-Xs
NS	ns.intevation.de ns1.u64.de
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.2
Issuer: Let's Encrypt
Subject: gnupg.org
Valid from: Jul 10, 2026
Valid to: Oct 8, 2026
Days until expiry: 79
SAN domains: gnupg.org, www.gnupg.org

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 3 · H3 16

Links

38 internal · 30 external · 1 broken

Images

4 total · 2 missing alt

Scripts / Styles

0 scripts · 1 stylesheets

JS / CSS size

0 B · 11.2 KB

Page size

16.7 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
sitemap.xml not found

Scan details

Requested URL: https://gnupg.org
Final URL: https://gnupg.org
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 132 ms
HTML size: 16.7 KB
Redirect chain: https://gnupg.org

Frequently asked questions

What technology does gnupg.org use?: We did not detect any specific technologies for gnupg.org in the latest scan.
Is gnupg.org secure (HTTPS)?: Yes. gnupg.org uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Oct 8, 2026.
Who hosts gnupg.org?: gnupg.org is hosted on PLUSSERVER-ASN1 - PlusServer GmbH, DE.
What is gnupg.org's SEO score?: gnupg.org scored 55/100 for SEO in the latest analysis (fair).
What is gnupg.org's overall website score?: gnupg.org has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.