giaoduc.net.vn

https://giaoduc.net.vn· First analyzed 02 May 2026· Updated 02 May 2026

Export

giaoduc.net.vn

Mobile

Sponsored

Hosting Provider

Vietnam Internet Network Information Center

IP Address

42.112.59.46

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS18403

CDN

Cloudflare

WAF

Cloudflare

Nameservers

benedict.ns.cloudflare.com.sarah.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

39 KB

40 requests

Image Optimization

Lazy LoadAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Vietnam Internet Network Information Center

CDN

Cloudflare

Technology Stack

5 Technologies Detected

Analytics

CSS Frameworks

Fonts

SEO Analysis

A83/100

Meta Tags9/15

Content10/12

Headings3/8

Technical23/25

E-E-A-T7/7

Images7/7

Links5/5

URL5/5

Social5/5

Freshness2/4

Mobile4/4

Indexability3/3

giaoduc.net.vngiaoduc.net.vn

Giáo dục Việt Nam

Giáo dục Việt Nam, cập nhật tin tức mới và nóng nhất về Đời sống Xã hội, Kinh tế, Pháp luật, Giáo dục, Thế giới, Văn hóa, Công nghệ và nhiều lĩnh vực khác

Title Length17 chars

Recommended: 50-60 chars (~106px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

199 URLs

199 sub-sitemaps

robots.txt

12 rules

Sitemap reference found

Local SEO

Local Search Readiness

13/100

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

D56/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

8/25

Citation

17/25

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:7%

Words:3,444

Token eff.:Good

Sections/1K:10.2

Structured Data

3 JSON-LD

Person×1.3Organization×1.1WebSite

sameAs entity links

Citation Readiness

Opening Summary36w

Descriptive Headingsavg 17.6w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

13/20

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

6/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

72/100

A+

5 mg

CO₂e / view

38.8 KB

Page Weight

95%

Cleaner Than

New Visitor

6 mg

Returning (cached)

3 mg

Annual (10K/mo)

576 g

Emission Segments

Data Center

1 mg

Network

1 mg

Device

3 mg

Resource Breakdown

Images

342 B

HTML

38.4 KB

Green Hosting Not Verified

Vietnam Internet Network Information Center

3 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

10d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

12.05.2025

Valid Until

12.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.giaoduc.net.vngiaoduc.net.vn

SHA-256 Fingerprint

06:31:F3:2D:F6:10:0D:B6:EF:07:71:DD:77:DB:A3:01:2C:87:4E:FA...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=utf-8

date

Sat, 02 May 2026 04:03:36 GMT

etag

d4d29adc57df1a410212fe8782c13da8

server-time

1777693435

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (8)

aspmx.l.google.com

aspmx2.googlemail.com

aspmx3.googlemail.com

aspmx4.googlemail.com

+4 more

Domain Information

giaoduc.net.vn

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

54/100

Mobile Friendly

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=5, user-scalable=yes

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial

56/100

Readability

/30

20/30

14px · LH 1.60

Hierarchy

/20

6/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

1:1

10 issues

Reading Comfort

~62 CPL

Optimal (45–75)

21px

16px

14px

Major Second

Scale

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

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

✅ Optimal line length: ~62 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

Color Palette

8 unique colors

4.38:1 AA Large Light

#fafafa

Background· 49.6%

#6b787a

Other· 6.4%

#efece0

Primary· 9.9%

#d11228

Accent· 7.5%

#dfd7cf

Secondary· 7.2%

#57323d

Secondary· 3.6%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)za.zdn.vn(1)google-analytics.com(1)sp.zalo.me(1)common.mcms.one(1)

Website Identity

Giáo dục Việt Nam

Organization

toasoan@giaoduc.net.vn

Location detected: 🇻🇳 Vietnamvia tld

📧 Google Workspacevi

Social Profiles

Facebook

Sponsored

Last analyzed: 02 May 2026 at 04:04

Historical Analysis & Change Tracking