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octave.org

GNU Octave

Last scanned Jul 26, 2026, 4:17 PM · 1 view

80

Overall score

Great

Summary

GNU Octave is a programming language for scientific computing. This website uses Apache. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: No H1 heading found.

GNU Octave is a programming language for scientific computing.

Top issues to fix

10 issues found · 3 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.

  • 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.

  • TLS certificate expires in 30 days

    Security

    Renew soon or enable auto-renewal to avoid a browser-warning outage.

  • 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.

+4 more issues — details in the sections below.

70

SEO

4 issue(s) found

100

Performance

236 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.

GNU Octave is a programming language for scientific computing.

Meta tags

Title
GNU Octave
Description
GNU Octave is a programming language for scientific computing.
Canonical
https://octave.org/index
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
GNU Octave
og:description
GNU Octave is a programming language for scientific computing.
og:type
website
og:url
https://octave.org/index

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
octave.org
Valid from
May 31, 2026
Valid to
Aug 29, 2026
Days until expiry
30
SAN domains
bugs.octave.org, buildbot.octave.org, docs.octave.org, ftp.octave.org, hg.octave.org, mxe-pkg-src.octave.org, nightly.octave.org, octave.org, packages.octave.org, savannah.octave.org, wiki.octave.org, www.octave.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 0 · H2 1 · H3 4

Links

14 internal · 6 external · 20 broken

Images

6 total · 0 missing alt

Scripts / Styles

3 scripts · 4 stylesheets

JS / CSS size

45 B · 0 B

Page size

11.1 KB

Robots.txt & Sitemap

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

SEO issues

  • No H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://octave.org
Final URL
https://octave.org
HTTP status
200
HTTP version
HTTP/1.1
Response time
236 ms
HTML size
11.1 KB
Redirect chain
https://octave.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does octave.org use?
octave.org is built with jQuery, Apache.
Is octave.org secure (HTTPS)?
Yes. octave.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 29, 2026.
Who hosts octave.org?
Hosting provider information for octave.org is not available yet.
What is octave.org's SEO score?
octave.org scored 70/100 for SEO in the latest analysis (fair).
What is octave.org's overall website score?
octave.org has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.