krunker.io

https://krunker.io· First analyzed 12 May 2026· Updated 12 May 2026

Export

krunker.io

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.20.38.18

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

hugh.ns.cloudflare.com.meera.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.4 s10%

Speed Index

1.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1 MB

61 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Advertising

CDN

SEO Analysis

D57/100

Meta Tags15/15

Content6/12

Headings0/8

Technical17/21

E-E-A-T2/7

Images3/7

Links2/5

URL5/5

Social3/5

Freshness0/4

Mobile1/4

Indexability3/3

krunker.iokrunker.io

Krunker.io - Free Online Multiplayer FPS Game | Play Now

Play Krunker.io - the ultimate free browser FPS game! Join millions of players in fast-paced multiplayer battles. No download required, works on any device.

Title Length56 chars

Recommended: 50-60 chars (~341px / 580px)

Description Length156 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (25/25) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

22/100

Needs Work

5 12

Sponsored

AI & LLM Readiness

F35/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

3/25

Citation

5/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:4%

Words:392

Token eff.:Optimal

Structured Data

2 JSON-LD

Organization×1.1

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

37/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

5/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

64/100

108 mg

CO₂e / view

1.0 MB

Page Weight

70%

Cleaner Than

New Visitor

123 mg

Returning (cached)

61 mg

Annual (10K/mo)

12.9 kg

Emission Segments

Data Center

5 mg

Network

32 mg

Device

71 mg

Resource Breakdown

JavaScript

406.2 KB

Images

125.1 KB

CSS

397.6 KB

HTML

14.7 KB

Other

120.5 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.05.2026

Valid Until

04.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

krunker.io*.krunker.io

SHA-256 Fingerprint

AD:99:37:57:50:C5:2E:61:92:73:33:B6:F5:6E:11:78:F5:D8:9C:57...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray

9fa96c521b48c7b0-DUS

content-encoding

⚡ Brotli(br)

content-type

text/html

date

Tue, 12 May 2026 12:28:25 GMT

Good Warning Issue

Email Infrastructure

Namecheap Email

Score

SPF

DKIM

DMARC

MX Records (2)

mx2.privateemail.com

mx1.privateemail.com

Domain Information

krunker.io

Domain Age

7y 11m

Created

21.05.2018

Expires

21.05.2027

Last Updated

26.04.2026

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

52/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width,user-scalable=no,minimum-scale=1,maximum-scale=1,viewport-fit=cover

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

GameFont

WCAG AA

68/100

Readability

/30

20/30

16px · LH --

Hierarchy

/20

8/20

WCAG

/25

22/25

4.56:1 min contrast

Performance

/25

18/25

1 font · 3 req

Heading Font

GameFont

Body Font

GameFont

Sans16px

Contrast Ratio

4.56:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

center aligned

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

✅ Lean font stack: 1 font families keeps load times fast.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFontsFlesch 33

Color Palette

4 unique colors

2.15:1 Fail Dark

#111111

Text· 85.09999999999998%

#4e4a45

Other· 3.3%

#ffd600

Primary· 0%

#d0d0c4

Secondary· 5.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

.(12)googletagmanager.com(2)google-analytics.com(1)cookie-cdn.cookiepro.com(1)platform.twitter.com(1)

Website Identity

Krunker.io

VideoGame

Free online multiplayer FPS game

7 years old

Location detected: 🇨🇦 Canadavia ip

NameCheap, Inc.📧 Namecheap Emailen

Sponsored

Last analyzed: 12 May 2026 at 12:28

Historical Analysis & Change Tracking