cesti.gov.vn

https://cesti.gov.vn· First analyzed 04 Jun 2026· Updated 04 Jun 2026

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cesti.gov.vn

Mobile

Sponsored

Hosting Provider

VIETTEL

IP Address

27.68.133.170

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS7552

Organization

VIETTEL

Server

Nginx

Performance

Core Web Vitals

Weight

First Contentful Paint

5.8 s10%

Speed Index

7.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.6 MB

57 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

VIETTEL

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Fonts

Social

Web Servers

SEO Analysis

D52/100

Meta Tags7/15

Content11/12

Headings0/8

Technical11/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

cesti.gov.vncesti.gov.vn

CESTI - Trang chủ

Trung tâm Thông tin và Thống kê KH&CN TP. HCM là đơn vị sự nghiệp trực thuộc Sở Khoa học và Công nghệ TP. HCM, được thành lập theo quyết định số 66/QĐ-UB ngà...

Description truncated.

Title Length17 chars

Recommended: 50-60 chars (~103px / 580px)

Description Length410 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (32/34) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

16/25

Schema Data

0/25

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

nav

Text ratio:11%

Words:933

Token eff.:Optimal

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary20w

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

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.

62/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

12/20

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

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.

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.

15/100

712 mg

CO₂e / view

5.6 MB

Page Weight

Cleaner Than

New Visitor

814 mg

Returning (cached)

407 mg

Annual (10K/mo)

85.5 kg

Emission Segments

Data Center

159 mg

Network

171 mg

Device

382 mg

Resource Breakdown

JavaScript

3.1 MB

Images

19.5 KB

CSS

411.9 KB

Fonts

2.1 KB

HTML

3.0 KB

Other

2.1 MB

Green Hosting Not Verified

VIETTEL

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

12d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

Valid From

18.03.2026

Valid Until

16.06.2026

Subject Alternative Names (1)

cesti.gov.vn

SHA-256 Fingerprint

A3:3E:B2:D3:7E:1C:AB:16:E8:AF:95:25:B6:52:3E:FA:32:B8:A5:C9...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(no-cache)

connection

keep-alive

content-length

2725

content-type

text/html

date

Thu, 04 Jun 2026 10:40:01 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.cesti.gov.vn

Domain Information

cesti.gov.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.

65/100

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,shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Source Code Pro

WCAG Partial

57/100

Readability

/30

22/30

14px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

11/25

2 fonts · 4 req

Heading Font

Source Code Pro

Body Font

Source Code Pro

Mono14px

Contrast Ratio

1:1

1 issue

Reading Comfort

Single Family

left aligned

14px

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

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

✅ Easy to read: Flesch score 86/100 — accessible to general audiences.

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

✅ Lean font stack: 2 font families keeps load times fast.

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

GGoogle Fonts Buy on MyFontsFlesch 86

Color Palette

9 unique colors

9.16:1 AAA Light

#ffffff

Background· 29.7%

#45484f

Other· 3.6%

#000000

Primary· 0%

#97c6e0

Accent· 51.7%

#61808e

Secondary· 3.4%

#d1dddd

Secondary· 3.3%

#68c8e2

Accent· 2.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

AddThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)googletagmanager.com(2)google-analytics.com(1)s7.addthis.com(1)

Website Identity

cesti.gov.vn

Location detected: 🇻🇳 Vietnamvia tld

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Last analyzed: 04 Jun 2026 at 02:40

Historical Analysis & Change Tracking