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libreboot.org

Libreboot – Free and Open Source BIOS/UEFI boot firmware

Last scanned Aug 24, 2026, 1:22 PM

92

Overall score

Excellent

Summary

Libreboot is a free/opensource BIOS/UEFI boot firmware distribution based on coreboot with GNU boot loader GRUB, SeaBIOS and U-Boot, for booting Linux/BSD. This website uses Nginx hosted on AKAMAI-LINODE-AP - Akamai Connected Cloud, SG. SEO is excellent (90/100) and accessibility is good (85/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

Libreboot is a free/opensource BIOS/UEFI boot firmware distribution based on coreboot with GNU boot loader GRUB, SeaBIOS and U-Boot, for booting Linux/BSD.

United States
Hosted on AKAMAI-LINODE-AP - Akamai Connected Cloud, SG

Top issues to fix

3 issues found · 1 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 structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • More than 20% of images are missing alt text

    Accessibility

    Add alt attributes to the remaining images (use alt="" for purely decorative ones).

90

SEO

1 issue(s) found

100

Performance

118 ms

90

Security

HTTPS & header checks

85

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.

Libreboot is a free/opensource BIOS/UEFI boot firmware distribution based on coreboot with GNU boot loader GRUB, SeaBIOS and U-Boot, for booting Linux/BSD.

Contact

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

Meta tags

Title
Libreboot – Free and Open Source BIOS/UEFI boot firmware
Description
Libreboot is a free/opensource BIOS/UEFI boot firmware distribution based on coreboot with GNU boot loader GRUB, SeaBIOS and U-Boot, for booting Linux/BSD.
Canonical
https://libreboot.org/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, user-scalable=yes
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Libreboot – Free and Open Source BIOS/UEFI boot firmware
og:description
Libreboot – Free and Open Source BIOS/UEFI boot firmware
og:type
article
og:url
https://libreboot.org/

Twitter Card

twitter:card
summary_large_image
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
212.111.40.74
ASN
AS63949 (AKAMAI-LINODE-AP - Akamai Connected Cloud, SG)

DNS records

TypeValue
A
  • 212.111.40.74
AAAA
  • 2a01:7e00::f03c:93ff:fea6:5496
MX
  • mail.libreboot.org
TXT
  • v=spf1 a mx ip4:81.187.172.134 ip6:2001:8b0:b95:1bb5::4 -all
NS
  • ns4.vimuser.org
  • ns2.shlinux.org
  • ns3.vimuser.org
  • ns1.shlinux.org
CAA
  • 0 issue "letsencrypt.org"
  • 0 iodef "mailto:leah@libreboot.org"
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
libreboot.org
Valid from
Jul 1, 2026
Valid to
Sep 29, 2026
Days until expiry
36
SAN domains
libreboot.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 2

Links

41 internal · 16 external · 0 broken

Images

11 total · 5 missing alt

Scripts / Styles

0 scripts · 1 stylesheets

JS / CSS size

0 B · 12.5 KB

Page size

16.6 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
205

SEO issues

  • No structured data (JSON-LD) found

Accessibility issues

  • More than 20% of images are missing alt text

Scan details

Requested URL
https://libreboot.org
Final URL
https://libreboot.org
HTTP status
200
HTTP version
HTTP/2
Response time
118 ms
HTML size
16.6 KB
Redirect chain
https://libreboot.org

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Frequently asked questions

What technology does libreboot.org use?
libreboot.org is built with Nginx.
Is libreboot.org secure (HTTPS)?
Yes. libreboot.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 29, 2026.
Who hosts libreboot.org?
libreboot.org is hosted on AKAMAI-LINODE-AP - Akamai Connected Cloud, SG.
What is libreboot.org's SEO score?
libreboot.org scored 90/100 for SEO in the latest analysis (excellent).
What is libreboot.org's overall website score?
libreboot.org has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.