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netsa.vn

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

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Hosting Provider

ODS Joint Stock Company

IP Address

103.249.100.2

Site Location

🇻🇳 tp. Hồ Chí Minh, Vietnamvia tld

Server Location

🇻🇳 Quận Tân Phú, Vietnam

ASN

AS45538

Organization

ODS Joint Stock Company

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

janet.ns.cloudflare.com.norm.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
533 ms10%
Speed Index
693 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.2 MB
62 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
NETSAv1.0Custom
by Dinh Van Tan
View Theme

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

13 Technologies Detected

Plugins

6
Crayon Syntax HighlighterKk Star RatingsMaster SliderOnesignal Free Web Push NotificationsLazy Load
Yoast SEO

Analytics

3
Google Analytics
Facebook PixelSegment

Libraries

1
jQuery UI

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Nginx

SEO Analysis

C61/100
18
6
3
Meta Tags8/15
Content3/12
Headings7/8
Technical23/25
E-E-A-T0/7
Images3/7
Links2/5
URL5/5
Social4/5
Freshness0/4
Mobile3/4
Indexability3/3
N
netsa.vnnetsa.vn

NETSA - Cloud VPS SSD - VPS gia re - Cho Thue Server - Email Hostin...

NETSA cho thuê Server, Cloud VPS SSD giá rẻ, Hosting, Email Hosting, Email Server, Giải Pháp Mạng, Thiết Kế Website, Thiết Kế Thương Hiệu. Sale@netsa.vn - 09...

Title truncated. Description truncated.
Title Length148 chars

Recommended: 50-60 chars (~903px / 580px)

Description Length166 chars

Recommended: 120-160 chars

Issues (3)

  • • Title is too long (148 chars, ~903px). Will be truncated in search results.
  • • Very thin content (0 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (17/30) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

17 rules

Sitemap reference found

Local SEO

Local Search Readiness

21/100
Needs Work
6 13 1

Sponsored

AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
4/25
Citation
2/25

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:1%
Words:735
Token eff.:Optimal

Structured Data

3 JSON-LD
WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary
Descriptive Headings
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...
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.
C
62/100
9
Passed
6
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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.
24/100
F
537 mg
CO₂e / view
4.2 MB
Page Weight
15%
Cleaner Than
New Visitor
614 mg
vs
Returning (cached)
307 mg
Annual (10K/mo)
64.4 kg
Emission Segments
Data Center
120 mg
Network
129 mg
Device
288 mg
Resource Breakdown
JavaScript
169.9 KB
Images
4.0 MB
CSS
60.0 KB
HTML
46.5 KB
Other
1.3 KB
Green Hosting Not Verified
ODS Joint Stock Company
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

21.04.2026

Valid Until

20.07.2026

Subject Alternative Names (2)

netsa.vnwww.netsa.vn

SHA-256 Fingerprint

51:7D:61:B3:3B:02:26:9F:46:C3:C9:06:89:A0:A6:92:9A:0D:39:96...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 1 Hours(public,max-age=3600,s-maxage=3600,must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html;charset=utf-8
date
Thu, 07 May 2026 21:35:59 GMT
expires
Thu, 07 May 2026 22:23:56 GMT
last-modified
Sat, 28 Mar 2026 11:09:42 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail.netsa.vn

Domain Information

netsa.vn

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
B
74/100
Mobile Friendly22 breakpoints
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=1.0, maximum-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

arial

WCAG Partial
69/100
Readability
/30
23/30

20px · LH 1.25

Hierarchy
/20
10/20

1.5x ratio

WCAG
/25
14/25

2.32:1 min contrast

Performance
/25
22/25

System fonts

Heading Font

arial

Sans30px

Body Font

arial

Sans20px

Contrast Ratio

2.32:1

24 issues

Reading Comfort

~51 CPL

Optimal (45–75)
30px
h1
36px
h2
25px
h4
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Tight line spacing (1.25). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~51 chars/line (ideal 45–75 CPL).

✅ Easy to read: Flesch score 77/100 — accessible to general audiences.

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 2.3:1).

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

Flesch 77

Color Palette

12 unique colors
Light
#ffffff
Text· 14.1%
#1a3666
Accent· 19.200000000000003%
#4db848
Primary· 0%
#3b414e
Secondary· 13%
#0e244b
Accent· 9.5%
#6c9c7a
Secondary· 7%
#555d6b
Secondary· 6.9%
#f2f1e5
Secondary· 6.4%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

1
Facebook SDKFree

Social widgets and sharing tools

3

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

Sponsored

Scripts & Styles

9 Resources

8
Scripts
1
Styles
3
Async
2
Defer

Top Script Sources

connect.facebook.net(2)cdn.onesignal.com(2)netsa.vn(2)google-analytics.com(1)images.dmca.com(1)

Website Identity

VPS Giá Rẻ - Cloud VPS - Cho Thuê Server - Email Marketing - Giải Pháp Mạng - Thiết Kế Website - Thiết Kế Thương Hiệu

cloud vps, vps gia re, may chu ao, vps linux, vps windows, email hosting, email server, thiet ke web, thiet ke thuong hieu

netsa.vn/
Location detected: 🇻🇳 Vietnam, tp. Hồ Chí Minhvia tld
vi

Social Profiles

Facebook

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Last analyzed: 07 May 2026 at 21:37

Historical Analysis & Change Tracking