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pypa.io

Python Packaging Authority — PyPA documentation

Last scanned Jul 26, 2026, 12:25 AM · 1 view

84

Overall score

Great

Summary

This website is hosted on Cloudflare. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on Cloudflare

Top issues to fix

8 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.

  • Missing meta description

    SEO

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

  • 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.

+2 more issues — details in the sections below.

70

SEO

4 issue(s) found

100

Performance

825 ms

70

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.

GitHub

Meta tags

Title
Python Packaging Authority — PyPA documentation
Description
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
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.

No technologies detected.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.16.254.120
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.16.254.120
  • 104.16.253.120
AAAA
  • 2606:4700::6810:fe78
  • 2606:4700::6810:fd78
MX
  • aspmx3.googlemail.com
  • aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx2.googlemail.com
TXT—
NS
  • ivan.ns.cloudflare.com
  • tegan.ns.cloudflare.com
CAA—
CNAME
  • readthedocs.io
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
www.pypa.io
Valid from
May 31, 2026
Valid to
Aug 29, 2026
Days until expiry
34
SAN domains
www.pypa.io

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 2

Links

10 internal · 10 external · 1 broken

Images

4 total · 0 missing alt

Scripts / Styles

10 scripts · 4 stylesheets

JS / CSS size

18.7 KB · 0 B

Page size

11.8 KB

Robots.txt & Sitemap

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

SEO issues

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

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://pypa.io
Final URL
https://www.pypa.io/en/latest/
HTTP status
200
HTTP version
HTTP/2
Response time
825 ms
HTML size
11.8 KB
Redirect chain
https://pypa.io → https://www.pypa.io/ → https://www.pypa.io/en/latest/

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Frequently asked questions

What technology does pypa.io use?
We did not detect any specific technologies for pypa.io in the latest scan.
Is pypa.io secure (HTTPS)?
Yes. pypa.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 29, 2026.
Who hosts pypa.io?
pypa.io is hosted on Cloudflare, behind Cloudflare CDN.
What is pypa.io's SEO score?
pypa.io scored 70/100 for SEO in the latest analysis (fair).
What is pypa.io's overall website score?
pypa.io has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.