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flatpak.org

The future of apps on Linux — Flatpak

Last scanned Jul 27, 2026, 10:43 AM

82

Overall score

Great

Summary

The days of chasing multiple Linux distributions are over. This website uses Nginx hosted on Fastly behind Fastly CDN. SEO is good (75/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Missing canonical link.

The days of chasing multiple Linux distributions are over. Standalone apps for Linux are here!

United States
Hosted on Fastly

Top issues to fix

7 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • 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.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+1 more issue — details in the sections below.

75

SEO

3 issue(s) found

90

Performance

1.04 s

75

Security

HTTPS & header checks

90

Accessibility

1 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.

Organization

Company details published in this site's own structured data.

The days of chasing multiple Linux distributions are over. Standalone apps for Linux are here!

Meta tags

Title
The future of apps on Linux — Flatpak
Description
The days of chasing multiple Linux distributions are over. Standalone apps for Linux are here!
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Flatpak
og:description
The future of application distribution
og:type
website
og:url
https://flatpak.org

Twitter Card

twitter:card
summary_large_image
twitter:title
Flatpak
twitter:description
The future of application distribution

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
140.248.129.91
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 140.248.129.91
AAAA
  • 2a04:4e42:90::347
MX
  • smtp.gnome.org
TXT
  • libera-iE!2PbqoQsUaDXkRDrbAX2_j
NS
  • ns-18-a.gandi.net
  • ns-134-c.gandi.net
  • ns-79-b.gandi.net
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
gnome.io
Valid from
Jul 26, 2026
Valid to
Oct 24, 2026
Days until expiry
89
SAN domains
feborg.es, flatpak.org, gnome.io, gnomeboxes.org, happybirthdaygnome.org, www.flatpak.org, www.gnome.io

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 5 · H3 0

Links

5 internal · 14 external · 0 broken

Images

7 total · 0 missing alt

Scripts / Styles

0 scripts · 1 stylesheets

JS / CSS size

0 B · 20.4 KB

Page size

12.5 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
8

SEO issues

  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://flatpak.org
Final URL
https://flatpak.org
HTTP status
200
HTTP version
HTTP/2
Response time
1.04 s
HTML size
12.5 KB
Redirect chain
https://flatpak.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does flatpak.org use?
flatpak.org is built with Nginx.
Is flatpak.org secure (HTTPS)?
Yes. flatpak.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 24, 2026.
Who hosts flatpak.org?
flatpak.org is hosted on Fastly, behind Fastly CDN.
What is flatpak.org's SEO score?
flatpak.org scored 75/100 for SEO in the latest analysis (fair).
What is flatpak.org's overall website score?
flatpak.org has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.