codester.com

https://codester.com· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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codester.com

Mobile

Sponsored

Hosting Provider

Transip NL Ams4

IP Address

37.97.194.134

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Baarlo, Netherlands

ASN

AS20857

Organization

Transip NL Ams4

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

hope.ns.cloudflare.com.curt.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

319 ms10%

Speed Index

415 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

79 KB

206 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

Transip NL Ams4

CDN

Cloudflare

Technology Stack

15 Technologies Detected

Libraries

Analytics

CSS Frameworks

Frameworks

UI Components

Other

Icon Libraries

Advertising

CDN

Languages

SEO Analysis

B78/100

Meta Tags11/15

Content12/12

Headings7/8

Technical23/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

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Title Length68 chars

Recommended: 50-60 chars (~421px / 580px)

Description Length109 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (286/503) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

16,695 URLs

robots.txt

3 rules

Local SEO

Local Search Readiness

15/100

Poor

4 13

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

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

15/25

Schema Data

7/25

Citation

12/25

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:2%

Words:1,064

Token eff.:Optimal

Sections/1K:1.9

Structured Data

3 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headingsavg 6.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

15/20

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

Forms & Inputs

7/15

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

5/15

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.

72/100

A+

8 mg

CO₂e / view

78.5 KB

Page Weight

95%

Cleaner Than

New Visitor

9 mg

Returning (cached)

5 mg

Annual (10K/mo)

948 g

Emission Segments

Data Center

<0.001 g

Network

2 mg

Device

5 mg

Resource Breakdown

JavaScript

2.5 KB

Images

18.7 KB

CSS

37.4 KB

HTML

19.9 KB

Green Hosting Verified

Transip

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

81d

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+H3

Valid From

22.04.2026

Valid Until

21.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

codester.com*.codester.com

SHA-256 Fingerprint

A0:33:CB:DB:57:03:96:5A:06:AF:E4:C5:9A:66:24:F7:97:23:6E:6C...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

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

cf-cache-status

DYNAMIC

cf-ray

9f481901ceda8fdf-BOS

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

codester.com

Domain Information

codester.com

Domain Age

22y 5m

Created

05.12.2003

Expires

05.12.2026

Last Updated

06.12.2025

Registrar

Key-Systems GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

51/100

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, initial-scale=1, maximum-scale=1

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Source Sans Pro

WCAG Partial

61/100

Readability

/30

20/30

14px · LH 1.43

Hierarchy

/20

14/20

2.14x ratio

WCAG

/25

16/25

1.14:1 min contrast

Performance

/25

11/25

1 font · 4 req

Heading Font

Source Sans Pro

Sans30px

Body Font

Source Sans Pro

Sans14px

Contrast Ratio

1.14:1

25 issues

Reading Comfort

Single Font Family

left aligned

30px

16px

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 1.1:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

7 unique colors

Light

#ffffff

Background· 35.4%

#edf1f2

Background· 29.9%

#1f2b38

Primary· 9%

#93aba8

Secondary· 7.7%

#0f1126

Secondary· 6.9%

#714e5a

Secondary· 6.1%

#e0d2c7

Secondary· 5%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

codester.com(13)connect.facebook.net(2)local(1)consent.cookiebot.com(1)googleads.g.doubleclick.net(1)

Website Identity

Codester

Organization

www.codester.com

22 years old

Location detected: 🇳🇱 Netherlandsvia ip

Key-Systems GmbHen

Social Profiles

Facebook X (Twitter)Pinterest

Sponsored

Last analyzed: 30 Apr 2026 at 17:00

Historical Analysis & Change Tracking