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tsdc.edu.vn

Hệ thống tuyển sinh đầu cấp

Last scanned Jul 27, 2026, 5:43 PM

68

Overall score

Fair

Summary

Hệ thống tuyển sinh đầu cấp trực tuyến. This website uses Apache hosted on VIETEL-AS-AP - Viettel Group, VN. SEO is fair (65/100) and accessibility is fair (50/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Missing canonical link.

Hệ thống tuyển sinh đầu cấp trực tuyến

Vietnam
Hosted on VIETEL-AS-AP - Viettel Group, VN

Top issues to fix

12 issues found · 4 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+6 more issues — details in the sections below.

65

SEO

5 issue(s) found

90

Performance

674 ms

65

Security

HTTPS & header checks

50

Accessibility

3 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Hệ thống tuyển sinh đầu cấp trực tuyến

Meta tags

Title
Hệ thống tuyển sinh đầu cấp
Description
Hệ thống tuyển sinh đầu cấp trực tuyến
Canonical
Language
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

LaravelGoogle AnalyticsApache

Hosting & CDN

CDN provider
—
IP address
171.224.247.27
ASN
AS7552 (VIETEL-AS-AP - Viettel Group, VN)

DNS records

TypeValue
A
  • 171.224.247.27
AAAA—
MX—
TXT—
NS
  • ns2.matbao.com
  • ns1.matbao.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
GlobalSign nv-sa
Subject
*.tsdc.edu.vn
Valid from
Oct 6, 2025
Valid to
Nov 7, 2026
Days until expiry
102
SAN domains
*.tsdc.edu.vn, tsdc.edu.vn

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 2 cookie(s) observed

Content & assets

Headings

H1 0 · H2 1 · H3 0

Links

3 internal · 0 external · 0 broken

Images

2 total · 2 missing alt

Scripts / Styles

1 scripts · 2 stylesheets

JS / CSS size

153 B · 371 KB

Page size

4.7 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found
  • Missing <html lang> attribute

Scan details

Requested URL
https://tsdc.edu.vn
Final URL
https://tsdc.edu.vn
HTTP status
200
HTTP version
HTTP/1.1
Response time
674 ms
HTML size
4.7 KB
Redirect chain
https://tsdc.edu.vn

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does tsdc.edu.vn use?
tsdc.edu.vn is built with Laravel, Google Analytics, Apache.
Is tsdc.edu.vn secure (HTTPS)?
Yes. tsdc.edu.vn uses TLS 1.2 with a certificate issued by GlobalSign nv-sa, valid until Nov 7, 2026.
Who hosts tsdc.edu.vn?
tsdc.edu.vn is hosted on VIETEL-AS-AP - Viettel Group, VN.
What is tsdc.edu.vn's SEO score?
tsdc.edu.vn scored 65/100 for SEO in the latest analysis (fair).
What is tsdc.edu.vn's overall website score?
tsdc.edu.vn has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.