StackOptic
Back to Search
ya4r.net favicon

ya4r.net

https://ya4r.net· First analyzed 17 May 2026· Updated 17 May 2026
Export
ya4r.net
Desktop screenshot of ya4r.net
Mobile screenshot of ya4r.net
Mobile

Sponsored

Hosting Provider

Vultr
vultr.com

IP Address

149.28.151.200

Site Location

🇸🇬 Singaporevia ip

Server Location

🇸🇬 Singapore, Singapore

ASN

AS20473

Organization

Vultr Holdings, LLC

Server

Nginx

Nameservers

ns2.pavietnam.vn.ns1.pavietnam.vn.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
670 ms10%
Speed Index
871 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
552 KB
31 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Vultr

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Segment

Libraries

1
jQuery

Icon Libraries

1
Font Awesome

Web Servers

1
Nginx

Languages

1
PHPv5.6.40

CSS Frameworks

1
Bootstrap

SEO Analysis

D52/100
13
8
3
Meta Tags12/15
Content11/12
Headings0/8
Technical11/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
Y
ya4r.netya4r.net

Diễn đàn hack game Android Việt Nam - YA4R.NET

Diễn đàn chém gió vui vẻ và chia sẻ games, ứng dụng,... hack miễn phí cho Android....

Title Length46 chars

Recommended: 50-60 chars (~282px / 580px)

Description Length85 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (38/53) — critical for accessibility and SEO
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

8 rules

Sitemap reference found

Local SEO

Local Search Readiness

0/100
Poor
15 2

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

Sponsored

AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
5/25

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:17%
Words:1,284
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary461w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
D
53/100
5
Passed
6
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
3/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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.
5 recommendations
  • •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.
42/100
A
68 mg
CO₂e / view
552.2 KB
Page Weight
80%
Cleaner Than
New Visitor
78 mg
vs
Returning (cached)
39 mg
Annual (10K/mo)
8.2 kg
Emission Segments
Data Center
15 mg
Network
16 mg
Device
37 mg
Resource Breakdown
JavaScript
293.2 KB
Images
202.4 KB
CSS
16.4 KB
HTML
40.2 KB
Green Hosting Not Verified
Vultr
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

38d

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

Valid From

27.03.2026

Valid Until

25.06.2026

Subject Alternative Names (2)

www.ya4r.netya4r.net

SHA-256 Fingerprint

06:9E:DB:AA:35:E5:49:07:E4:84:68:8A:CC:2D:9E:88:B5:5D:06:B4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔵 Public(public)
connection
keep-alive
content-type
text/html; charset=UTF-8
date
Sun, 17 May 2026 12:19:56 GMT
expires
0
pragma
no-cache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

ya4r.net

Domain Age
11y 8m

Created

29.08.2014

Expires

29.08.2026

Last Updated

01.09.2025

Registrar

Domain.com - Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
F
34/100
Not 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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Tahoma

WCAG Partial
53/100
Readability
/30
12/30

9px · LH --

Hierarchy
/20
10/20
WCAG
/25
17/25

2.29:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Tahoma

Body Font

Tahoma

Sans9px

Contrast Ratio

2.29:1

6 issues

Reading Comfort

~73 CPL

Optimal (45–75)
9px
p

❌ Critical: 9px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line length: ~73 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 24/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 2.3:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 25

Color Palette

6 unique colors
3.01:1 AA Large Light
#efefef
Background· 65.3%
#898995
Other· 5.5%
#bec1ca
Primary· 8.1%
#ccbc95
Secondary· 0.5%

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

Sponsored

Scripts & Styles

7 Resources

5
Scripts
2
Styles
3
Async
0
Defer

Top Script Sources

jsc.adskeeper.com(2)..(2)google-analytics.com(1)

Website Identity

ya4r.net

11 years old
Location detected: 🇸🇬 Singaporevia ip
Domain.com - Network Solutions, LLC

Sponsored

Last analyzed: 17 May 2026 at 12:20

Historical Analysis & Change Tracking