hou.edu.vn

https://hou.edu.vn· First analyzed 20 May 2026· Updated 20 May 2026

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hou.edu.vn

Mobile

Sponsored

Hosting Provider

Vietnam Internet Network Information Center

IP Address

42.112.25.161

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS18403

Server

Nginx

Nameservers

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

Performance

Core Web Vitals

Weight

First Contentful Paint

6.9 s10%

Speed Index

9.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

8 MB

127 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPressv6.4.1

Infrastructure

Hosting

Vietnam Internet Network Information Center

Technology Stack

18 Technologies Detected

Plugins

Redux Framework Multilanguage Rselements

CSS Frameworks

Libraries

UI Components

Swiper Slick Carousel

Other

Icon Libraries

Fonts

Web Servers

Languages

SEO Analysis

D53/100

Meta Tags4/15

Content10/12

Headings1/8

Technical19/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

hou.edu.vnhou.edu.vn

Trường Đại học Mở Hà Nội

No description available for this page.

Title Length24 chars

Recommended: 50-60 chars (~147px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (41/49) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

10 URLs

10 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

17/100

Poor

5 10 2

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

Sponsored

AI & LLM Readiness

F39/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

9/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:3%

Words:1,209

Token eff.:Optimal

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary249w

Descriptive Headingsavg 13.7w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

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.

5 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.

28/100

1.01 g

CO₂e / view

8.0 MB

Page Weight

Cleaner Than

New Visitor

1.16 g

Returning (cached)

578 mg

Annual (10K/mo)

121.3 kg

Emission Segments

Data Center

226 mg

Network

243 mg

Device

543 mg

Resource Breakdown

JavaScript

641.3 KB

Images

4.4 MB

CSS

2.9 MB

Fonts

6.0 KB

HTML

33.3 KB

Green Hosting Not Verified

Vietnam Internet Network Information Center

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

52d

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/1.1

Valid From

13.04.2026

Valid Until

12.07.2026

Subject Alternative Names (2)

hou.edu.vnwww.hou.edu.vn

SHA-256 Fingerprint

17:84:EA:AD:16:BB:F0:DC:83:53:E8:67:40:5A:39:80:C7:F7:6C:BB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

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

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Wed, 20 May 2026 04:00:30 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

ALT1.ASPMX.L.GOOGLE.COM

ASPMX3.GOOGLEMAIL.COM

ASPMX2.GOOGLEMAIL.COM

ALT2.ASPMX.L.GOOGLE.COM

+1 more

Domain Information

hou.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.

73/100

Mobile Friendly4 breakpoints

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto

WCAG AAA

63/100

Readability

/30

16/30

15px · LH 1.70

Hierarchy

/20

6/20

WCAG

/25

25/25

12.63:1 min contrast

Performance

/25

16/25

1 font · 11 req

Heading Font

Roboto

Sans

Body Font

Roboto

Sans15px

Contrast Ratio

12.63:1

WCAG AAA (≥7:1)

Reading Comfort

~42 CPL

Narrow lines

24px

18px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 12.6:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

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

GGoogle FontsFluid Type (rem)Flesch 0

Color Palette

12 unique colors

Light

#ffffff

Background· 38.199999999999996%

#095fb1

Primary· 17%

#064da3

Accent· 9.6%

#ce7a49

Accent· 8.4%

#9bb5c9

Secondary· 6.3%

#75272c

Secondary· 5.5%

#041f6f

Accent· 5%

#dae4e4

Secondary· 3.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

hou.edu.vn(20)

Website Identity

hou.edu.vn

mhn@hou.edu.vn

024.3868.2321

Location detected: 🇻🇳 Vietnamvia tld

📧 Google Workspacevi

Social Profiles

Facebook YouTube

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Last analyzed: 20 May 2026 at 04:01

Historical Analysis & Change Tracking