dientrotiendathc.com

https://dientrotiendathc.com· First analyzed 21 May 2026· Updated 21 May 2026

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Mobile

Sponsored

Hosting Provider

customerhosting

IP Address

116.193.69.134

Site Location

🇻🇳 Vietnamvia ip

Server Location

🇻🇳 Ho Chi Minh City, Vietnam

ASN

AS24085

Organization

customerhosting

Server

Apache

Nameservers

ns2.dotvndns.vn.ns1.dotvndns.vn.

Performance

Core Web Vitals

Weight

First Contentful Paint

837 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

16.9 MB

167 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

customerhosting

Technology Stack

6 Technologies Detected

Libraries

UI Components

CSS Frameworks

Icon Libraries

Fonts

Web Servers

SEO Analysis

D48/100

Meta Tags8/15

Content11/12

Headings3/8

Technical5/21

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

dientrotiendathc.comdientrotiendathc.com

Công ty TNHH Tiến Đạt H&C

điện trở, dien tro duc, dien tro noi hoi, dien tro vong, dien tro say, linh kiện, pc , máy in, máy photocopy,

Title Length25 chars

Recommended: 50-60 chars (~152px / 580px)

Description Length110 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

14 issues found

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Local SEO

Local Search Readiness

14/100

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

F32/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

5/25

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

Text ratio:6%

Words:1,105

Token eff.:Optimal

Sections/1K:124

Structured Data

No Schema

Citation Readiness

Opening Summary16w

Descriptive Headingsavg 3.1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

47/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

4/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

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

0/15

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.

17/100

2.14 g

CO₂e / view

16.9 MB

Page Weight

Cleaner Than

New Visitor

2.44 g

Returning (cached)

1.22 g

Annual (10K/mo)

256.7 kg

Emission Segments

Data Center

478 mg

Network

513 mg

Device

1.15 g

Resource Breakdown

JavaScript

87.0 KB

Images

15.9 MB

CSS

881.8 KB

Fonts

3.0 KB

HTML

5.9 KB

Other

11.8 KB

Green Hosting Not Verified

customerhosting

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

86d

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

18.05.2026

Valid Until

16.08.2026

Subject Alternative Names (2)

dientrotiendathc.comwww.dientrotiendathc.com

SHA-256 Fingerprint

2B:2B:A5:07:6F:12:65:2C:F7:ED:32:1E:D4:4B:72:76:D9:A1:49:58...

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-length

5715

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 17:14:57 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

dientrotiendathc.com

Domain Age

13y 5m

Created

06.12.2012

Expires

06.12.2027

Last Updated

21.11.2025

Registrar

P.A. Viet Nam Company Limited

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.

39/100

Not 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.

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

UTMHelvetIns + Roboto

WCAG Partial

49/100

Readability

/30

17/30

15px · LH 1.33

Hierarchy

/20

7/20

WCAG

/25

13/25

2.28:1 min contrast

Performance

/25

12/25

System fonts

Heading Font

UTMHelvetIns

Sans

Body Font

Roboto

Sans15px

Contrast Ratio

2.28:1

8 issues

Reading Comfort

~54 CPL

Optimal (45–75)

32px

16px

32px

15px

Major Third

Scale

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

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~54 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 2.3:1).

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

GGoogle Fonts Buy on MyFontsFlesch 29

Color Palette

10 unique colors

17.59:1 AAA Light

#ffffff

Background· 26.9%

#18191b

Text· 24.9%

#303740

Secondary· 8.3%

#cb2930

Primary· 6.3%

#493457

Secondary· 6%

#916576

Secondary· 5.9%

#475c7a

Secondary· 5.8%

#e3d0cb

Secondary· 5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(4)Toolstip(3)

Website Identity