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0xkato.xyz

https://0xkato.xyz· First analyzed 04 Jun 2026· Updated 04 Jun 2026
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0xkato.xyz
Desktop screenshot of 0xkato.xyz
Mobile screenshot of 0xkato.xyz
Mobile

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Hosting Provider

Lefkoff Industries

IP Address

216.198.79.1

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Atlanta, United States

ASN

AS16509

Organization

Lefkoff Industries

Server

Vercel

Nameservers

ns1.vercel-dns.com.ns2.vercel-dns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
429 ms10%
Speed Index
558 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
264 KB
5 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Jekyllv3.10.0
Infrastructure
Platform
Vercel

Technology Stack

3 Technologies Detected

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Platforms

1
Vercel

SEO Analysis

C60/100
18
7
1
Meta Tags5/15
Content2/12
Headings8/8
Technical18/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile3/4
Indexability3/3
0
0xkato.xyz0xkato.xyz

Home | 0xkato

A blog about technology and stuff related

Title Length13 chars

Recommended: 50-60 chars (~81px / 580px)

Description Length41 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (18 words). Search engines need substantial content for ranking.

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

9/100
Poor
3 13 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D40/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
2/25
Citation
13/25

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
navheader/footer
Text ratio:0%
Words:15
Token eff.:Too Short
Sections/1K:10
Depth:2/5

Structured Data

1 JSON-LD
WebSite

Citation Readiness

Opening Summary
Descriptive Headingsavg 7w
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
A
83/100
13
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
69/100
A+
33 mg
CO₂e / view
264.0 KB
Page Weight
95%
Cleaner Than
New Visitor
37 mg
vs
Returning (cached)
19 mg
Annual (10K/mo)
3.9 kg
Emission Segments
Data Center
7 mg
Network
8 mg
Device
18 mg
Resource Breakdown
Images
245.9 KB
Fonts
1.2 KB
HTML
16.9 KB
Green Hosting Not Verified
Lefkoff Industries
1 recommendation
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

47d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.04.2026

Valid Until

21.07.2026

Subject Alternative Names (1)

*.0xkato.xyz

SHA-256 Fingerprint

86:28:9E:39:C5:EF:66:1C:68:A6:FD:6E:8D:B6:7A:00:21:9C:57:75...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin
*
age
21162
cache-control
🟡 0s(public, max-age=0, must-revalidate)
content-disposition
inline
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

0xkato.xyz

Domain Age
3y 6m

Created

20.11.2022

Expires

20.11.2026

Last Updated

24.04.2026

Registrar

Name.com, Inc

DNSSEC
Not Enabled

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.
B
74/100
Mobile Friendly66 breakpoints
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, initial-scale=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial
64/100
Readability
/30
20/30

16px · LH --

Hierarchy
/20
17/20

2x ratio · ✓ H1→H6

WCAG
/25
15/25

3.41:1 min contrast

Performance
/25
12/25

System fonts

Heading Font

-apple-system

Sans32px

Body Font

-apple-system

Sans16px

Contrast Ratio

3.41:1

Below AA

Reading Comfort

Single Font Family

left aligned
32px
h1
11px
h2

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

⚠️ Partial contrast: 0 elements below WCAG AA threshold (min 3.4:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ System fonts: Zero font loading delay — best possible LCP impact.

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

GGoogle Fonts

Color Palette

4 unique colors
Dark
#0a0a0a
Background· 97.30000000000001%
#d8cfc8
Primary· 1.1%
#664d4c
Secondary· 0.8%
#1e1717
Border· 0.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

1 Resources

0
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

0xkato

A blog about technology and stuff related

[email protected]
0xkato.xyz/
3 years old
Location detected: 🇺🇸 United Statesvia ip
Name.com, Incen

Social Profiles

X (Twitter)GitHub

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Last analyzed: 04 Jun 2026 at 02:08

Historical Analysis & Change Tracking