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SGSiteGraph

matplotlib.org

Matplotlib — Visualization with Python

Last scanned Jul 26, 2026, 5:17 AM · 3 views

81

Overall score

Great

Summary

This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance good (75/100). Top issue: Missing meta description.

United States
Hosted on Cloudflare

Top issues to fix

6 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.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing canonical link

    SEO

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

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

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

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

65

SEO

5 issue(s) found

75

Performance

312 ms

90

Security

HTTPS & header checks

100

Accessibility

0 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.

X (Twitter)Instagram

Meta tags

Title
Matplotlib — Visualization with Python
Description
Canonical
Language
en
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.

Cloudflare Analytics

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.26.0.8
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.26.0.8
  • 104.26.1.8
  • 172.67.74.104
AAAA
  • 2606:4700:20::681a:108
  • 2606:4700:20::ac43:4a68
  • 2606:4700:20::681a:8
MX
  • mx1.privateemail.com
  • mx2.privateemail.com
TXT
  • google-site-verification=btS9IXtmTtVn4tUyC9oCdfHqIhte-Sm0RAFStma4xk4
  • v=spf1 include:spf.privateemail.com ~all
NS
  • neil.ns.cloudflare.com
  • sima.ns.cloudflare.com
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
matplotlib.org
Valid from
Jul 3, 2026
Valid to
Oct 1, 2026
Days until expiry
67
SAN domains
matplotlib.org, *.matplotlib.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 1 · H3 8

Links

29 internal · 25 external · 0 broken

Images

12 total · 0 missing alt

Scripts / Styles

17 scripts · 6 stylesheets

JS / CSS size

1.7 MB · 401 KB

Page size

34.1 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
33
sitemap.xml
Found
URLs in sitemap
79

SEO issues

  • Missing meta description
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://matplotlib.org
Final URL
https://matplotlib.org
HTTP status
200
HTTP version
HTTP/2
Response time
312 ms
HTML size
34.1 KB
Redirect chain
https://matplotlib.org

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Frequently asked questions

What technology does matplotlib.org use?
matplotlib.org is built with Cloudflare Analytics.
Is matplotlib.org secure (HTTPS)?
Yes. matplotlib.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 1, 2026.
Who hosts matplotlib.org?
matplotlib.org is hosted on Cloudflare, behind Cloudflare CDN.
What is matplotlib.org's SEO score?
matplotlib.org scored 65/100 for SEO in the latest analysis (fair).
What is matplotlib.org's overall website score?
matplotlib.org has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.