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doanhnhansaigon.vn

https://doanhnhansaigon.vn· First analyzed 07 May 2026· Updated 07 May 2026
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doanhnhansaigon.vn
Desktop screenshot of doanhnhansaigon.vn
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Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.21.57.131

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

linda.ns.cloudflare.com.kevin.ns.cloudflare.com.

Performance

84

Core Web Vitals

Weight

First Contentful Paint
1.9 s10%
Speed Index
2.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
30 KB
49 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.4.1

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

A83/100
25
3
1
Meta Tags14/15
Content12/12
Headings3/8
Technical23/25
E-E-A-T7/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
D
doanhnhansaigon.vndoanhnhansaigon.vn

Tạp chí Doanh Nhân Sài Gòn - Cùng doanh nhân - Vì doanh nhân

Diễn đàn doanh nhân, thời sự kinh tế chuyên sâu, kiến thức và tiện ích cho doanh nhân. Cung cấp kiến thức, kỹ năng, kinh nghiệm kinh doanh và quản trị, phát ...

Description truncated.
Title Length60 chars

Recommended: 50-60 chars (~372px / 580px)

Description Length198 chars

Recommended: 120-160 chars

Issues (1)

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

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2,322 URLs

2322 sub-sitemaps

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

18/100
Poor
5 12

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

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AI & LLM Readiness

D58/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
10/25
Citation
14/25

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:7%
Words:2,206
Token eff.:Optimal
Sections/1K:15.4
Depth:1/5

Structured Data

3 JSON-LD
Person×1.3Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 15.3w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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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.
C
63/100
9
Passed
3
Critical
2
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
5/15
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.
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.
66/100
A+
3 mg
CO₂e / view
29.6 KB
Page Weight
95%
Cleaner Than
New Visitor
3 mg
vs
Returning (cached)
2 mg
Annual (10K/mo)
360 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
2 mg
Resource Breakdown
JavaScript
3.7 KB
Images
342 B
HTML
18.7 KB
Other
6.9 KB
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

WAF

51d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

29.03.2026

Valid Until

27.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

doanhnhansaigon.vn*.doanhnhansaigon.vn

SHA-256 Fingerprint

DE:C4:04:A1:2D:D7:BC:55:46:93:41:9E:1F:A1:35:B2:EB:AA:8D:4A...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
*
age
0
alt-svc
h3=":443"; ma=86400
cache-control
🟡 0s(private, max-age=0)
cf-cache-status
DYNAMIC
cf-ray🇩🇪 Frankfurt
9f7f45535d51bb43-FRA
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

pro207.emailserver.vn

Domain Information

doanhnhansaigon.vn

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
D
53/100
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...
Upgrade to view recommendations

Typography & Readability

Arial

WCAG AA
85/100
Readability
/30
23/30

14px · LH 1.40

Hierarchy
/20
18/20

2.86x ratio · ✓ H1→H6

WCAG
/25
22/25

5.5:1 min contrast

Performance
/25
22/25

System fonts

Heading Font

Arial

Sans40px

Body Font

Arial

Sans14px

Contrast Ratio

5.5:1

WCAG AA (≥4.5:1)

Reading Comfort

~52 CPL

Optimal (45–75)
40px
h1
18px
h2
32px
h3
14px
p
Major Second
Scale

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.5:1).

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

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

Flesch 64

Color Palette

9 unique colors
4.86:1 AA Light
#ffffff
Background· 50.8%
#66756a
Other· 6.2%
#eaf4f9
Primary· 10.100000000000001%
#a29788
Secondary· 9%
#4e93a7
Secondary· 5.3%
#374d59
Secondary· 5.1%
#98b9c4
Secondary· 3.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

12 Resources

9
Scripts
3
Styles
5
Async
0
Defer

Top Script Sources

googletagmanager.com(3)dnsg.1cdn.vn(3)google-analytics.com(1)doanhnhansaigon.vn(1)id.1cdn.vn(1)

Website Identity

doanhnhansaigon.vn

Person
0915232024
Location detected: 🇻🇳 Vietnamvia tld
vi

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Last analyzed: 07 May 2026 at 09:42

Historical Analysis & Change Tracking