k3s.io

K3s

Last scanned Aug 3, 2026, 5:00 PM · 12 views

83

Overall score

Great

Summary

This website uses Google Analytics hosted on Fastly behind Fastly CDN. SEO is good (75/100) and accessibility is good (85/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

United States

Hosted on Fastly

Top issues to fix

7 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 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.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+1 more issue — details in the sections below.

75

SEO

3 issue(s) found

100

Performance

203 ms

75

Security

HTTPS & header checks

85

Accessibility

1 issue(s) found

Score history

+3 overall since Jul 26, 2026

Overall: 83
SEO: 75
Security: 75
Performance: 100
Accessibility: 85

Meta tags

Title: K3s
Description
Canonical: https://k3s-io.github.io/
Language: en
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Google Analytics

Hosting & CDN

Hosting provider: Fastly
CDN provider: Fastly
IP address: 185.199.109.153
ASN: AS54113 (FASTLY - Fastly, Inc., US)

DNS records

Type	Value
A	185.199.109.153 185.199.111.153 185.199.110.153 185.199.108.153
AAAA	2606:50c0:8003::153 2606:50c0:8001::153 2606:50c0:8002::153 2606:50c0:8000::153
MX	k3s-io.mail.protection.outlook.com
TXT	v=spf1 include:spf.protection.outlook.com -all 0ed1fe018ad0e217083972428d9a17881aadd87931 MS=ms30178254 google-site-verification=8cy9Xz-c9aHIUQEZv89nlnc8ZdlsJaL6K5R0TSTJ1bU google-site-verification=NDZJ-7b3nmE-y_OotsXr2ZP24iqYiyhSCw8HJQcT7wk
NS	nora.ns.cloudflare.com brad.ns.cloudflare.com
CAA	0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issuewild "letsencrypt.org" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issuewild "comodoca.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issuewild "ssl.com" 0 issue "letsencrypt.org" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issue "ssl.com" 0 issue "comodoca.com"
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: k3s.io
Valid from: Jun 28, 2026
Valid to: Sep 26, 2026
Days until expiry: 54
SAN domains: k3s.io

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 3 · H3 0

Links

2 internal · 11 external · 0 broken

Images

5 total · 2 missing alt

Scripts / Styles

5 scripts · 1 stylesheets

JS / CSS size

422 KB · 177 KB

Page size

14.1 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Found
URLs in sitemap: 2

SEO issues

Missing meta description
No structured data (JSON-LD) found
robots.txt not found

Scan details

Requested URL: https://k3s.io
Final URL: https://k3s.io
HTTP status: 200
HTTP version: HTTP/2
Response time: 203 ms
HTML size: 14.1 KB
Redirect chain: https://k3s.io

See something wrong on this report? Request a correction

Same technology stack

atlan.com

Atlan - The Context Layer for AI

plausiblegoogle-analyticsmeta-pixel

Cloudflare· Cloudflare

activtrak.com

ActivTrak Work Intelligence for Productivity Optimization

wordpressgoogle-analyticsgoogle-ads

Cloudflare· Cloudflare

1001spiele.de

1001 Spiele - Kostenlose coole online Spiele spielen!

google-analytics

Cloudflare· Cloudflare

ashbyprd.com

All-in-one Recruiting Software for Ambitious Teams | Ashby

nextjsgoogle-analytics

1001jeux.fr

1001 Jeux - Jouer aux meilleurs Jeux Gratuits en ligne!

google-analytics

Cloudflare· Cloudflare

avinor.no

Avinor – Flyplasser, reiseinformasjon og tjenester i Norge

google-analytics

Cloudflare· Cloudflare

Same hosting provider

saltoks.com

Salto KS | Salto

drupalgoogle-analyticsgatsby

fhinck.com

Fhinck — Task Mining + Agentes de IA | AI First

nextjsgoogle-analytics

litera.com

Litera | Legal Technology Solutions

Fastly· Fastly

vovici.com

Survey Management Software | Verint

wordpressnginxjquery

Fastly· Fastly

dvsa.gov.uk

Driver and Vehicle Standards Agency - GOV.UK

Fastly· Fastly

gapseat.in

GapSeat | IRCTC Chart Vacancy & Vacant Train Seats

google-analytics

Frequently asked questions

What technology does k3s.io use?: k3s.io is built with Google Analytics.
Is k3s.io secure (HTTPS)?: Yes. k3s.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 26, 2026.
Who hosts k3s.io?: k3s.io is hosted on Fastly, behind Fastly CDN.
What is k3s.io's SEO score?: k3s.io scored 75/100 for SEO in the latest analysis (fair).
What is k3s.io's overall website score?: k3s.io has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
Has k3s.io's score changed over time?: k3s.io's overall score has improved by 3 points (from 80 to 83) since Jul 26, 2026.