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SGSiteGraph

softwareheritage.org

Home Page - Software Heritage

Last scanned Jul 26, 2026, 11:19 AM

83

Overall score

Great

Summary

This website uses WordPress behind Fastly CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Missing meta description.

Top issues to fix

6 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.

  • 2 cookies 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.

80

SEO

2 issue(s) found

90

Performance

1.31 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.

GitHubLinkedInX (Twitter)YouTube

Contact

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

Meta tags

Title
Home Page - Software Heritage
Description
Canonical
https://www.softwareheritage.org/
Language
en-US
Charset
UTF-8
Viewport
width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Home Page
og:description
—
og:type
website
og:url
https://www.softwareheritage.org/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

PHPWordPressjQueryApache

Hosting & CDN

Hosting provider
—
CDN provider
Fastly
IP address
217.70.180.134
ASN
—

DNS records

TypeValue
A
  • 217.70.180.134
AAAA
  • 2001:4b98:dc0:950::134
MX—
TXT—
NS—
CAA—
CNAME
  • gpaas4.dc0.gandi.net
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Gandi
Subject
www.softwareheritage.org
Valid from
Sep 25, 2025
Valid to
Oct 24, 2026
Days until expiry
88
SAN domains
www.softwareheritage.org

Security headers

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

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 48

Links

73 internal · 36 external · 0 broken

Images

46 total · 8 missing alt

Scripts / Styles

55 scripts · 38 stylesheets

JS / CSS size

12.2 KB · 21.8 KB

Page size

140 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Missing meta description
  • No H1 heading found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://softwareheritage.org
Final URL
https://www.softwareheritage.org/
HTTP status
200
HTTP version
HTTP/2
Response time
1.30 s
HTML size
140 KB
Redirect chain
https://softwareheritage.org → https://www.softwareheritage.org/

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Frequently asked questions

What technology does softwareheritage.org use?
softwareheritage.org is built with PHP, WordPress, jQuery, Apache.
Is softwareheritage.org secure (HTTPS)?
Yes. softwareheritage.org uses TLS 1.3 with a certificate issued by Gandi, valid until Oct 24, 2026.
Who hosts softwareheritage.org?
Hosting provider information for softwareheritage.org is not available yet.
What is softwareheritage.org's SEO score?
softwareheritage.org scored 80/100 for SEO in the latest analysis (great).
What is softwareheritage.org's overall website score?
softwareheritage.org has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.