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SGSiteGraph

http.cat

HTTP Cats

Last scanned Jul 26, 2026, 3:19 PM

80

Overall score

Great

Summary

An API for the awesome HTTP Cats! Use it in your website to show funny error messages. This website uses Next.js hosted on Cloudflare behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance good (80/100). Top issue: Missing canonical link.

An API for the awesome HTTP Cats! Use it in your website to show funny error messages.

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.

  • Slow estimated load (11.7s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • 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.

  • Missing canonical link

    SEO

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

+2 more issues — details in the sections below.

80

SEO

3 issue(s) found

80

Performance

11.70 s

65

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.

An API for the awesome HTTP Cats! Use it in your website to show funny error messages.

Meta tags

Title
HTTP Cats
Description
An API for the awesome HTTP Cats! Use it in your website to show funny error messages.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
HTTP Cats
og:description
API for HTTP Cats
og:type
website
og:url
https://http.cat

Twitter Card

twitter:card
summary_large_image
twitter:title
HTTP Cats
twitter:description
API for HTTP Cats

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
172.67.204.170
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 172.67.204.170
  • 104.21.77.53
AAAA
  • 2606:4700:3033::ac43:ccaa
  • 2606:4700:3032::6815:4d35
MX
TXT
  • google-site-verification=oH980gSpIWn0WhqG9BjPTLtgg_c1WMRJ870hE8PgQm8
NS
  • zariyah.ns.cloudflare.com
  • rayden.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
http.cat
Valid from
Jul 23, 2026
Valid to
Oct 21, 2026
Days until expiry
86
SAN domains
http.cat, *.http.cat

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 1 · H2 1 · H3 0

Links

80 internal · 6 external · 0 broken

Images

84 total · 1 missing alt

Scripts / Styles

17 scripts · 2 stylesheets

JS / CSS size

479 KB · 10.0 KB

Page size

77.0 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://http.cat
Final URL
https://http.cat
HTTP status
200
HTTP version
HTTP/2
Response time
11.70 s
HTML size
77.0 KB
Redirect chain
https://http.cat

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Frequently asked questions

What technology does http.cat use?
http.cat is built with Next.js, Google Analytics, Cloudflare Analytics.
Is http.cat secure (HTTPS)?
Yes. http.cat uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 21, 2026.
Who hosts http.cat?
http.cat is hosted on Cloudflare, behind Cloudflare CDN.
What is http.cat's SEO score?
http.cat scored 80/100 for SEO in the latest analysis (great).
What is http.cat's overall website score?
http.cat has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.