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lilypond.org

LilyPond – Music notation for everyone

Last scanned Jul 27, 2026, 9:43 AM · 1 view

82

Overall score

Great

Summary

LilyPond – Music notation for everyone. This website uses Apache. SEO is good (75/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

LilyPond – Music notation for everyone

United States

Top issues to fix

9 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

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

  • 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.

  • No structured data (JSON-LD) found

    SEO

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

+3 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

250 ms

65

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.

LilyPond – Music notation for everyone

Contact

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

Source: https://lilypond.org/contact.html

Meta tags

Title
LilyPond – Music notation for everyone
Description
LilyPond – Music notation for everyone
Canonical
Language
Charset
utf-8
Viewport
width=device-width,initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Apache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
35.206.114.173
ASN
AS15169 43515 ()

DNS records

TypeValue
A
  • 35.206.114.173
AAAA—
MX
  • mx.soverin.net
TXT
  • Freedom Internet=DpuwgJDJHU6d8nJd
  • v=spf1 +a include:freedom.nl ~all
NS
  • y.ns.joker.com
  • z.ns.joker.com
  • x.ns.joker.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
lilypond.org
Valid from
Jun 12, 2026
Valid to
Sep 10, 2026
Days until expiry
44
SAN domains
lilypond.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 1

Links

60 internal · 2 external · 0 broken

Images

2 total · 0 missing alt

Scripts / Styles

1 scripts · 1 stylesheets

JS / CSS size

594 B · 13.5 KB

Page size

26.5 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
27
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute

Scan details

Requested URL
https://lilypond.org
Final URL
https://lilypond.org
HTTP status
200
HTTP version
HTTP/2
Response time
250 ms
HTML size
26.5 KB
Redirect chain
https://lilypond.org

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Frequently asked questions

What technology does lilypond.org use?
lilypond.org is built with Apache.
Is lilypond.org secure (HTTPS)?
Yes. lilypond.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 10, 2026.
Who hosts lilypond.org?
Hosting provider information for lilypond.org is not available yet.
What is lilypond.org's SEO score?
lilypond.org scored 75/100 for SEO in the latest analysis (fair).
What is lilypond.org's overall website score?
lilypond.org has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.