vietteltelecom.vn

https://vietteltelecom.vn· First analyzed 07 May 2026· Updated 07 May 2026

Export

vietteltelecom.vn

Mobile

Sponsored

Hosting Provider

VIETEL

IP Address

171.244.232.19

Site Location

🇻🇳 Hà Nội, Vietnamvia schema

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS7552

Organization

VIETEL

Server

Cloudrity

Nameservers

dns2.vietel.com.vn.dns1.vietel.com.vn.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.7 s10%

Speed Index

3.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3 MB

128 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

VIETEL

Progressive Web App

Web ManifestTheme Color

Technology Stack

7 Technologies Detected

Analytics

Libraries

Other

CSS Frameworks

Tag Managers

SEO Analysis

C69/100

Meta Tags13/15

Content9/12

Headings3/8

Technical16/21

E-E-A-T2/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

vietteltelecom.vnvietteltelecom.vn

Viettel Telecom | Dịch Vụ Viễn Thông & Công Nghệ Hàng Đầu

Truy cập để khám phá Dịch vụ Di động, Internet, Truyền hình và các Sản phẩm Công nghệ.

Title Length57 chars

Recommended: 50-60 chars (~345px / 580px)

Description Length86 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Local SEO

Local Search Readiness

45/100

Fair

11 12

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

15/25

Schema Data

6/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:4%

Words:878

Token eff.:Optimal

Sections/1K:50.1

Structured Data

2 JSON-LD

Organization×1.1LocalBusiness×1.1

sameAs entity links

Citation Readiness

Opening Summary112w

Descriptive Headingsavg 4.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

16/20

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

4/15

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

3 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.

14/100

383 mg

CO₂e / view

3.0 MB

Page Weight

30%

Cleaner Than

New Visitor

438 mg

Returning (cached)

219 mg

Annual (10K/mo)

45.9 kg

Emission Segments

Data Center

86 mg

Network

92 mg

Device

206 mg

Resource Breakdown

JavaScript

1.4 MB

Images

326.3 KB

CSS

1.3 MB

HTML

2.0 KB

Green Hosting Not Verified

VIETEL

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

240d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.12.2025

Valid Until

03.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.vietteltelecom.vnvietteltelecom.vn

SHA-256 Fingerprint

23:FF:DC:98:27:DC:8F:67:FE:04:F4:84:CC:56:4A:70:7B:5E:D8:15...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8,gbk

date

Thu, 07 May 2026 07:28:40 GMT

expires

Thu, 01 Jan 1970 00:00:01 GMT

server

Cloudrity

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.vietteltelecom.vn

Domain Information

vietteltelecom.vn

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

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.

52/100

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,user-scalable=no,initial-scale=1,maximum-scale=1,minimum-scale=1

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial

62/100

Readability

/30

18/30

14px · LH 1.36

Hierarchy

/20

14/20

2x ratio · ✓ H1→H6

WCAG

/25

16/25

4.03:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

Roboto

Sans28px

Body Font

Roboto

Sans14px

Contrast Ratio

4.03:1

3 issues

Reading Comfort

~45 CPL

Optimal (45–75)

28px

44px

21px

14px

Minor Second

Scale

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

⚠️ Tight line spacing (1.36). Increase to 1.4–1.6 for better readability.

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

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 4.0:1).

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

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

Color Palette

8 unique colors

Light

#ffffff

Background· 41.2%

#fe021b

Primary· 26.099999999999998%

#ee0033

Primary· 0%

#fe394b

Accent· 8.7%

#72080e

Accent· 6.8%

#d1878d

Secondary· 5.4%

#b1091c

Accent· 4.3%

#e8283c

Accent· 4.2%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)connect.facebook.net(2)local(2)google-analytics.com(1)cdnjs.cloudflare.com(1)

Website Identity

Viettel Telecom

Organization

Truy cập để khám phá Dịch vụ Di động, Internet, Truyền hình và các Sản phẩm Công nghệ.

18008119

vietteltelecom.vn/vx/

1 P. Giang Văn Minh, Kim Mã, Ba Đình, Hà Nội, Hà Nội

100000, Hà Nội

Location detected: 🇻🇳 Vietnam, Hà Nộivia schema

Social Profiles

Facebook YouTube

Sponsored

Last analyzed: 07 May 2026 at 07:29

Historical Analysis & Change Tracking