mathx.vn
MATHX - THÍCH HỌC TOÁN
Last scanned Jul 26, 2026, 12:49 PM
Overall score
Fair
Summary
Phương pháp giỏi Toán, phát triển tư duy cho HS từ yếu đến trung bình. This website uses Nginx. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Phương pháp giỏi Toán, phát triển tư duy cho HS từ yếu đến trung bình. Luyện Toán nâng cao, luyện thi HSG cho HS khá, giỏi. Chương trình học được giảng dạy 100% từ thầy Trần Hữu Hiếu
Top issues to fix
11 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
+5 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
268 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- mathx.vn@gmail.com
- Phone
- 09711131630912698216
Meta tags
- Title
- MATHX - THÍCH HỌC TOÁN
- Description
- Phương pháp giỏi Toán, phát triển tư duy cho HS từ yếu đến trung bình. Luyện Toán nâng cao, luyện thi HSG cho HS khá, giỏi. Chương trình học được giảng dạy 100% từ thầy Trần Hữu Hiếu
- Canonical
- https://mathx.vn/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Sectigo Limited
- Subject
- mathx.vn
- Valid from
- Sep 23, 2025
- Valid to
- Oct 24, 2026
- Days until expiry
- 88
- SAN domains
- mathx.vn, www.mathx.vn
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
104 internal · 5 external · 20 broken
Images
43 total · 1 missing alt
Scripts / Styles
32 scripts · 12 stylesheets
JS / CSS size
7.9 KB · 6.9 KB
Page size
121 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://mathx.vn
- Final URL
- https://mathx.vn
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 266 ms
- HTML size
- 121 KB
- Redirect chain
- https://mathx.vn
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Frequently asked questions
- What technology does mathx.vn use?
- mathx.vn is built with jQuery, Google Analytics, Google Ads, Meta Pixel, Nginx.
- Is mathx.vn secure (HTTPS)?
- Yes. mathx.vn uses TLS 1.2 with a certificate issued by Sectigo Limited, valid until Oct 24, 2026.
- Who hosts mathx.vn?
- Hosting provider information for mathx.vn is not available yet.
- What is mathx.vn's SEO score?
- mathx.vn scored 65/100 for SEO in the latest analysis (fair).
- What is mathx.vn's overall website score?
- mathx.vn has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card