ylefu.com

https://ylefu.com· First analyzed 01 May 2026· Updated 01 May 2026

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ylefu.com

Mobile

Sponsored

Hosting Provider

LiteSpeed

cloudflare.com

IP Address

172.67.211.168

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sima.ns.cloudflare.com.michael.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

295 KB

9 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

5 Technologies Detected

Libraries

CSS Frameworks

Icon Libraries

CDN

Plugins

SEO Analysis

D47/100

Meta Tags8/15

Content0/12

Headings8/8

Technical14/25

E-E-A-T0/7

Images1/7

Links1/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

ylefu.comylefu.com

Site is undergoing maintenance

AICodeCraft – Practical AI Coding Tools, Guides & Real-World Projects

Title Length30 chars

Recommended: 50-60 chars (~180px / 580px)

Description Length69 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (26 words). Search engines need substantial content for ranking.
• Most images missing alt text (1/1) — critical for accessibility and SEO

10 issues found

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Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

24 rules

Sitemap reference found

Allows all crawlers

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

F31/100

Bot Access

15/25

Machine Read.

9/25

Schema Data

0/25

Citation

7/25

AI Bot Access

6/14 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

header/footer

Text ratio:3%

Words:22

Token eff.:Too Short

Sections/1K:10

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 4w

Canonical URL

Open Graph2/3

Twitter Card0/3

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.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

18/20

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

Forms & Inputs

8/15

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

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.

3 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.

73/100

A+

30 mg

CO₂e / view

294.7 KB

Page Weight

90%

Cleaner Than

New Visitor

34 mg

Returning (cached)

17 mg

Annual (10K/mo)

3.6 kg

Emission Segments

Data Center

2 mg

Network

9 mg

Device

20 mg

Resource Breakdown

JavaScript

34.9 KB

Images

212.8 KB

CSS

44.8 KB

HTML

2.2 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

WAF

86d

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

28.04.2026

Valid Until

27.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

ylefu.com*.ylefu.com

SHA-256 Fingerprint

11:EB:C8:F4:70:8B:86:3E:38:2D:76:DE:74:09:7A:B8:7D:B9:B0:01...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🔴 No Cache(no-cache, must-revalidate, max-age=0, no-store, private)

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f522efd6af36489-MXP

content-encoding

zstd

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

ylefu.com

Domain Age

9y 2m

Created

03.02.2017

Expires

03.02.2027

Last Updated

04.02.2026

Registrar

Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

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.

56/100

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

66/100

Readability

/30

19/30

14px · LH --

Hierarchy

/20

15/20

2.29x ratio · ✓ H1→H6

WCAG

/25

17/25

1:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

Open Sans

Sans32px

Body Font

Open Sans

Sans14px

Contrast Ratio

1:1

3 issues

Reading Comfort

~46 CPL

Optimal (45–75)

32px

45px

14px

Augmented Fourth

Scale

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

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

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

Buy on MyFonts

Color Palette

5 unique colors

3.62:1 AA Large Dark

#161717

Text· 28.900000000000002%

#6e7073

Other· 4.9%

#252c36

Primary· 38.79999999999999%

#444b53

Secondary· 14.100000000000001%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ylefu.com(3)

Website Identity

ylefu.com

9 years old

Location detected: 🇨🇦 Canadavia ip

Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)en-US

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Last analyzed: 01 May 2026 at 22:22

Historical Analysis & Change Tracking