gxd.vn

https://gxd.vn· First analyzed 24 May 2026· Updated 24 May 2026

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gxd.vn

Mobile

Sponsored

Hosting Provider

VHOST

IP Address

103.27.62.60

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Hoàn Kiếm, Vietnam

ASN

AS56150

Organization

VHOST

Server

Nginx

Nameservers

ns2.vdconline.vn.ns1.vdconline.vn.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3 MB

64 requests

Image Optimization

Lazy LoadWebPResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Styling

Tailwind CSS

Infrastructure

Hosting

VHOST

CDN

Vercel Image

Technology Stack

5 Technologies Detected

Meta Frameworks

Other

CSS Frameworks

Analytics

Web Servers

SEO Analysis

D59/100

Meta Tags9/15

Content10/12

Headings3/8

Technical11/21

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

gxd.vngxd.vn

Hệ phần mềm Quản lý dự án xây dựng, mô hình thông tin công trình

No description available for this page.

Title Length64 chars

Recommended: 50-60 chars (~401px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

12/100

Poor

4 11 2

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

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

13/25

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:1%

Words:1,327

Token eff.:Optimal

Sections/1K:13.6

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary137w

Descriptive Headingsavg 5.4w

Canonical URL

Open Graph2/3

Twitter Card2/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

77/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

15/15

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

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

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.

29/100

376 mg

CO₂e / view

3.0 MB

Page Weight

30%

Cleaner Than

New Visitor

430 mg

Returning (cached)

215 mg

Annual (10K/mo)

45.2 kg

Emission Segments

Data Center

84 mg

Network

90 mg

Device

202 mg

Resource Breakdown

JavaScript

207.8 KB

Images

30.2 KB

CSS

1.5 MB

HTML

151.1 KB

Other

1.1 MB

Green Hosting Not Verified

VHOST

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

30d

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

26.03.2026

Valid Until

24.06.2026

Subject Alternative Names (1)

gxd.vn

SHA-256 Fingerprint

4A:96:6E:42:43:D8:55:5C:36:ED:E4:3D:3A:E5:EE:EA:D6:34:85:B4...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sun, 24 May 2026 08:41:27 GMT

server

nginx/1.18.0 (Ubuntu)

vary

RSC, Next-Router-State-Tree, Next-Router-Prefetch, Accept-En...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

aspmx2.googlemail.com

aspmx.l.google.com

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

gxd.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.

71/100

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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

62/100

Readability

/30

23/30

16px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

14/25

1.1:1 min contrast

Performance

/25

17/25

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans16px

Contrast Ratio

1.1:1

16 issues

Reading Comfort

~39 CPL

Narrow lines

30px

48px

16px

Golden Ratio

Scale

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.1:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 100

Color Palette

11 unique colors

12.6:1 AAA Light

#ffffff

Text· 14.4%

#393136

Text· 5.3%

#0d0e1a

Secondary· 31.1%

#2b9b59

Primary· 6.9%

#22262f

Secondary· 6.3%

#4f6768

Secondary· 1.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(9)

Website Identity

gxd.vn

phanmem@gxd.vn

0974 889 500

Location detected: 🇻🇳 Vietnamvia tld

📧 Google Workspacevi

Social Profiles

Facebook TikTok

Sponsored

Last analyzed: 24 May 2026 at 08:42

Historical Analysis & Change Tracking