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choosealicense.com

Choose an open source license | Choose a License

Last scanned Jul 26, 2026, 5:25 AM

94

Overall score

Excellent

Summary

Non-judgmental guidance on choosing a license for your open source project. This website is hosted on Fastly. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100).

Non-judgmental guidance on choosing a license for your open source project

United States
Hosted on Fastly

Top issues to fix

4 issues found · 1 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 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.

  • 1 broken link on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

100

SEO

0 issue(s) found

100

Performance

230 ms

75

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.

Non-judgmental guidance on choosing a license for your open source project

Meta tags

Title
Choose an open source license | Choose a License
Description
Non-judgmental guidance on choosing a license for your open source project
Canonical
https://choosealicense.com/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Choose an open source license
og:description
Non-judgmental guidance on choosing a license for your open source project
og:type
website
og:url
https://choosealicense.com/

Twitter Card

twitter:card
summary
twitter:title
Choose an open source license
twitter:description
Non-judgmental guidance on choosing a license for your open source project

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
185.199.111.153
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 185.199.111.153
  • 185.199.108.153
  • 185.199.109.153
  • 185.199.110.153
AAAA
  • 2606:50c0:8002::153
  • 2606:50c0:8001::153
  • 2606:50c0:8000::153
  • 2606:50c0:8003::153
MX—
TXT
  • v=spf1 -all
NS
  • dns4.p05.nsone.net
  • dns1.p05.nsone.net
  • dns3.p05.nsone.net
  • dns2.p05.nsone.net
CAA
  • 0 issue "sectigo.com"
  • 0 issue "letsencrypt.org"
  • 0 issue "digicert.com"
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
choosealicense.com
Valid from
Jul 3, 2026
Valid to
Oct 1, 2026
Days until expiry
67
SAN domains
choosealicense.com, www.choosealicense.com

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 2 · H3 6

Links

16 internal · 10 external · 1 broken

Images

0 total · 0 missing alt

Scripts / Styles

2 scripts · 2 stylesheets

JS / CSS size

7.0 KB · 13.2 KB

Page size

10.3 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
55

SEO issues

No SEO issues detected.

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://choosealicense.com
Final URL
https://choosealicense.com
HTTP status
200
HTTP version
HTTP/2
Response time
230 ms
HTML size
10.3 KB
Redirect chain
https://choosealicense.com

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Frequently asked questions

What technology does choosealicense.com use?
We did not detect any specific technologies for choosealicense.com in the latest scan.
Is choosealicense.com secure (HTTPS)?
Yes. choosealicense.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 1, 2026.
Who hosts choosealicense.com?
choosealicense.com is hosted on Fastly, behind Fastly CDN.
What is choosealicense.com's SEO score?
choosealicense.com scored 100/100 for SEO in the latest analysis (excellent).
What is choosealicense.com's overall website score?
choosealicense.com has an overall SiteGraph score of 94/100, combining SEO, performance, security, and accessibility.