hdiu.edu.vn

https://hdiu.edu.vn· First analyzed 04 Jun 2026· Updated 04 Jun 2026

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hdiu.edu.vn

Mobile

Sponsored

Hosting Provider

Vietnam Posts and Telecommunications Group

IP Address

123.30.171.174

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS45899

Organization

Vietnam Posts and Telecommunications Group

Server

Nginx

Nameservers

ns2.pavietnam.vn.ns1.pavietnam.vn.nsbak.pavietnam.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

334 ms10%

Speed Index

434 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

34 KB

41 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

Vietnam Posts and Telecommunications Group

Technology Stack

8 Technologies Detected

UI Components

Owl Carousel Fancybox

CSS Frameworks

Libraries

Icon Libraries

Fonts

Web Servers

SEO Analysis

B77/100

Meta Tags9/15

Content12/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

hdiu.edu.vnhdiu.edu.vn

Trường Đại học Đông Đô

Trường Đại học Đông Đô là một trường đại học tư thục. Trường có trụ sở chính đặt tại xã Phú Nghĩa và Tòa nhà Đại học Đông Đô tại phường Thanh Xuân, thành phố HN

Title Length22 chars

Recommended: 50-60 chars (~134px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (40/73) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: standard

1,892 URLs

robots.txt

9 rules

Local SEO

Local Search Readiness

29/100

Needs Work

8 9

Sponsored

AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

8/25

Citation

11/25

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:3,409

Token eff.:Poor Structure

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary1128w

Descriptive Headingsavg 6w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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

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

4/15

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.

60/100

A+

4 mg

CO₂e / view

34.4 KB

Page Weight

95%

Cleaner Than

New Visitor

5 mg

Returning (cached)

2 mg

Annual (10K/mo)

504 g

Emission Segments

Data Center

<0.001 g

Network

1 mg

Device

2 mg

Resource Breakdown

HTML

34.4 KB

Green Hosting Not Verified

Vietnam Posts and Telecommunications Group

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

42d

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

18.04.2026

Valid Until

17.07.2026

Subject Alternative Names (2)

hdiu.edu.vnwww.hdiu.edu.vn

SHA-256 Fingerprint

15:D8:0C:E9:7F:3D:E7:79:F7:87:F9:B1:35:B7:63:2F:32:DD:27:14...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

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

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 04 Jun 2026 15:17:25 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

hdiu-edu-vn.mail.eo.outlook.com

Domain Information

hdiu.edu.vn

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.

70/100

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=1.0

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG AAA

79/100

Readability

/30

22/30

16px · LH --

Hierarchy

/20

19/20

2x ratio · ✓ H1→H6

WCAG

/25

24/25

9.4:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines

32px

24px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Easy to read: Flesch score 74/100 — accessible to general audiences.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

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

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

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

Buy on MyFontsFlesch 74

Color Palette

8 unique colors

Light

#ffffff

Background· 90.40000000000002%

#a8aadb

Secondary· 2.2%

#8c8bd1

Secondary· 1.9000000000000001%

#e0e3ef

Primary· 1.9%

#d2d1e5

Secondary· 1.3%

#bcbae8

Secondary· 1.1%

#636196

Secondary· 0.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

hdiu.edu.vn(7)

Website Identity

Trường Đại học Đông Đô

Organization

[email protected]

0243771996009032822820983282282

hdiu.edu.vn/

Location detected: 🇻🇳 Vietnamvia tld

📧 Microsoft 365vi

Social Profiles

Facebook

Sponsored

Last analyzed: 04 Jun 2026 at 15:17

Historical Analysis & Change Tracking