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devlib.io

https://devlib.io· First analyzed 11 May 2026· Updated 11 May 2026
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devlib.io
Desktop screenshot of devlib.io
Mobile screenshot of devlib.io
Mobile

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Hosting Provider

Contabo
contabo.com

IP Address

5.189.130.220

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Lauterbourg, France

ASN

AS51167

Organization

Contabo GmbH

Server

Nginx

Nameservers

nsc.ictmedia.hr.nsa.ictmedia.hr.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 KB
11 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Contabo

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

D48/100
14
8
1
Meta Tags4/15
Content7/12
Headings8/8
Technical11/21
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
D
devlib.iodevlib.io

Domain Default page

No description available for this page.

Title Length19 chars

Recommended: 50-60 chars (~116px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

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

Sponsored

AI & LLM Readiness

F33/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
6/25

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
header/footer
Text ratio:8%
Words:210
Token eff.:Too Short
Sections/1K:4.8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 3w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
80/100
11
Passed
1
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
76/100
A+
<0.001 g
CO₂e / view
607 B
Page Weight
95%
Cleaner Than
New Visitor
<0.001 g
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
12 g
Emission Segments
Resource Breakdown
HTML
607 B
Green Hosting Verified
Contabo
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

40d

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

22.03.2026

Valid Until

20.06.2026

Subject Alternative Names (3)

devlib.iowebmail.devlib.iowww.devlib.io

SHA-256 Fingerprint

F9:21:7C:F1:EC:F7:08:FF:28:B7:0C:D0:44:4E:9A:CC:31:AC:2F:4B...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
307
content-type
text/html
date
Mon, 11 May 2026 00:25:50 GMT
etag
"1d0-5e5e676bc033e-gzip"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.devlib.io

Domain Information

devlib.io

Domain Age
10y 11m

Created

09.06.2015

Expires

09.06.2026

Last Updated

15.05.2025

Registrar

NameCheap, 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.
C
68/100
Mobile Friendly6 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

Inter

WCAG Fail
74/100
Readability
/30
24/30

20px · LH 1.60

Hierarchy
/20
17/20

2x ratio · ✓ H1→H6

WCAG
/25
13/25

1:1 min contrast

Performance
/25
20/25

1 font · 2 req

Heading Font

Inter

Sans40px

Body Font

Inter

Sans20px

Contrast Ratio

1:1

35 issues

Reading Comfort

~37 CPL

Narrow lines
40px
h1
28px
h2
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

❌ Low contrast: 35 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

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

Buy on MyFontsFluid Type (rem)Flesch 44

Color Palette

7 unique colors
Dark
#49464a
Other· 2.4%
#1a191f
Primary· 66.69999999999999%
#1d6a88
Accent· 14.799999999999999%
#d0bca1
Secondary· 5.8%
#549fbc
Secondary· 5.4%
#4d717d
Secondary· 3%
#1f4356
Secondary· 1.8%

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

1
Scripts
0
Styles
0
Async
0
Defer

Top Script Sources

assets.plesk.com(1)

Website Identity

devlib.io

10 years old
Location detected: 🇫🇷 Francevia ip
NameCheap, Inc.en

Social Profiles

FacebookYouTube

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Last analyzed: 11 May 2026 at 00:26

Historical Analysis & Change Tracking