python.org
Measuring…
python.org
Scanned:
82/ 100
Score by axis
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Fix what matters first
- 1+4
- 2Core security headersHow to fix this →+3
Add the missing headers: X-Content-Type-Options, Referrer-Policy.
- 3+2
- 4Cache-Control+2
Set Cache-Control to control caching of HTML and static assets.
- 5Canonical URL+2
Add <link rel="canonical"> to avoid duplicate-content issues.
Recommendations are ranked by their impact on your score.
All checks
Security
74/ 100- Pass
HTTPS & HTTP→HTTPS redirect
HTTPS available; HTTP redirects to HTTPS
- Pass
TLS certificate validity
Valid; expires in 220 days
expires 2027-02-14 · GlobalSign Atlas R3 DV TLS CA 2025 Q4 - Pass
HSTS (Strict-Transport-Security)
Present
max-age=63072000; includeSubDomains; preload - Warn
Content-Security-Policy
No Content-Security-Policy header
Add a Content-Security-Policy to mitigate and injection.
- Warn
Core security headers
Missing: X-Content-Type-Options, Referrer-Policy
Add the missing headers: X-Content-Type-Options, Referrer-Policy.
- Pass
Mixed content (HTTP on HTTPS)
No insecure (http://) subresources
- Pass
SPF email anti-spoofing
record present
v=spf1 mx ip4:188.166.95.178/32 ip6:2a03:b0c0:2:d0::71:1 include:stspg-customer.com include:_spf.google.com include:mailgun.org ~all - Pass
DMARC email anti-spoofing
record present
v=DMARC1; p=none; pct=100; rua=mailto:re+shb8ybr70a3@dmarc.postmarkapp.com; sp=none; aspf=r; - Fail
Vulnerable front-end libraries
jQuery 1.8.2 — 8 known (max: High)
jquery@1.8.2Upgrade the flagged libraries to a patched version.
Performance
91/ 100- Pass
Time to First Byte
1 ms
- Pass
Text compression
Enabled (gzip)
- Pass
HTTP/2 or HTTP/3
HTTP/2.0
- Warn
Cache-Control
No Cache-Control header
Set Cache-Control to control caching of HTML and static assets.
- Pass
Core Web Vitals (PageSpeed)
perf 82/100, 1175ms, 0.00 (field)
SEO
74/ 100- Pass
Page title
Welcome to Python.org
- Pass
Meta description
52 characters
The official home of the Python Programming Language - Warn
Canonical URL
No canonical link
Add <link rel="canonical"> to avoid duplicate-content issues.
- Pass
- Warn
XML sitemap
No sitemap found
Publish a sitemap.xml and reference it from robots.txt.
- Warn
Single H1
5 H1 tag(s)
Use a single <h1> per page.
- Pass
Image alt text
1/1 images have alt (100%)
- Pass
Structured data (JSON-LD)
present
WebSite, SearchAction
Infrastructure
100/ 100- N/A
CMS detection
No CMS fingerprint detected
- N/A
CMS known vulnerabilities
No CMS detected
- Pass
Web server
nginx
- Pass
CDN detection
Fastly
- Pass
TLS version
TLS 1.3
- Pass
IPv6 (AAAA record)
AAAA record present
2a04:4e42:600::223
Reputation
90/ 100- Pass
Domain blacklist status
Not on major blocklists
checked: Spamhaus DBL, SURBL - N/A
Domain age
Registration date unavailable
- N/A
Domain expiry
Expiry date unavailable
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