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labex.io

https://labex.io· First analyzed 03 May 2026· Updated 03 May 2026
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labex.io
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Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.18.16.141

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

harvey.ns.cloudflare.com.zelda.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
387 ms10%
Speed Index
503 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
120 KB
175 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
⚙️ SSR
Frontend
Framework
Nuxt.js
Styling
Tailwind CSS
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

Meta Frameworks

1
Nuxt.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Heroicons

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B70/100
24
2
1
Meta Tags13/15
Content2/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
L
labex.iolabex.io

Free Linux, DevOps & Cybersecurity Labs | LabEx

LabEx offers free hands-on labs for Linux, DevOps, Cybersecurity, Programming, and Data Science. Master practical skills through real-world projects and inte...

Description truncated.
Title Length47 chars

Recommended: 50-60 chars (~285px / 580px)

Description Length195 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (8 words). Search engines need substantial content for ranking.

3 issues found

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Crawlability

Sitemap
robots.txt

8 rules

Sitemap reference found

Local SEO

Local Search Readiness

19/100
Poor
6 11 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.
11/25
Schema Data
2/25
Citation
7/25

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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:1%
Words:660
Token eff.:Optimal

Structured Data

2 JSON-LD
WebSite

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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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.
C
66/100
9
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
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
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
13/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
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.
2 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
A+
12 mg
CO₂e / view
119.5 KB
Page Weight
95%
Cleaner Than
New Visitor
14 mg
vs
Returning (cached)
7 mg
Annual (10K/mo)
1.5 kg
Emission Segments
Data Center
<0.001 g
Network
4 mg
Device
8 mg
Resource Breakdown
Images
4.4 KB
HTML
114.7 KB
Other
428 B
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
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A+

Security Score

96%Excellent
Static / Informational

HTTPS

WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

30.04.2026

Valid Until

29.07.2026

Subject Alternative Names (2)

cert-renderer.labex.iolabex.io

SHA-256 Fingerprint

94:85:5E:87:32:48:96:84:6B:60:FE:18:49:F7:DC:39:9D:C7:E0:4A...

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HTTP Headers

Developer Console

access-control-allow-credentials
true
access-control-allow-headers
Accept, Origin, Referer, X-CSRFToken
access-control-allow-methods
GET, POST
access-control-allow-origin
https://labex.io
alt-svc
h3=":443"; ma=86400
cf-cache-status
BYPASS
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxw.mxhichina.com
mxn.mxhichina.com

Domain Information

labex.io

Domain Age
8y 6m

Created

12.10.2017

Expires

12.10.2027

Last Updated

15.04.2025

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

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.
C
68/100
Mobile Friendly10 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

Nunito Variable

WCAG Partial
72/100
Readability
/30
22/30

16px · LH 1.60

Hierarchy
/20
18/20

2.5x ratio · ✓ H1→H6

WCAG
/25
14/25

2.54:1 min contrast

Performance
/25
18/25

1 font · 1 req

Heading Font

Nunito Variable

Sans40px

Body Font

Nunito Variable

Sans16px

Contrast Ratio

2.54:1

8 issues

Reading Comfort

~37 CPL

Narrow lines
40px
h1
30px
h2
30px
h3
16px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 2.5:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

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

Buy on MyFonts

Color Palette

3 unique colors
2.36:1 Fail Light
#ffffff
Background· 87.89999999999999%
#aca8a3
Other· 5.9%
#efecea
Primary· 6.1%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

10 Resources

8
Scripts
2
Styles
5
Async
4
Defer

Top Script Sources

clarity.ms(2)googletagmanager.com(2)scripts.clarity.ms(1)local(1)accounts.google.com(1)

Website Identity

LabEx

LabEx offers free hands-on labs for Linux, DevOps, Cybersecurity, Programming, and Data Science. Master practical skills through real-world projects and interactive courses. Start learning today!

[email protected]
8 years old
Location detected: 🇨🇦 Canadavia ip
GoDaddy.com, LLCen

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Last analyzed: 03 May 2026 at 02:55

Historical Analysis & Change Tracking