fsel.edu.vn
Fsel
Last scanned Aug 24, 2026, 1:22 PM · 1 view
Overall score
Fair
Summary
FSEL là nền tảng học ngoại ngữ trực tuyến ứng dụng AI hàng đầu, hiệu quả như học trực tiếp tại trung tâm, giúp học viên mọi lứa tuổi học tập tự tin cùng giáo viên b… This website uses Next.js. SEO is fair (55/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
FSEL là nền tảng học ngoại ngữ trực tuyến ứng dụng AI hàng đầu, hiệu quả như học trực tiếp tại trung tâm, giúp học viên mọi lứa tuổi học tập tự tin cùng giáo viên bản ngữ & chương trình chuẩn quốc tế.
Top issues to fix
11 issues found · 2 high priority
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.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+5 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
123 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.
Meta tags
- Title
- Fsel
- Description
- FSEL là nền tảng học ngoại ngữ trực tuyến ứng dụng AI hàng đầu, hiệu quả như học trực tiếp tại trung tâm, giúp học viên mọi lứa tuổi học tập tự tin cùng giáo viên bản ngữ & chương trình chuẩn quốc tế.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- 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 1.3
- Issuer
- Let's Encrypt
- Subject
- fsel.edu.vn
- Valid from
- Jul 21, 2026
- Valid to
- Oct 19, 2026
- Days until expiry
- 55
- SAN domains
- *.fsel.edu.vn, fsel.edu.vn
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
0 internal · 8 external · 8 broken
Images
34 total · 1 missing alt
Scripts / Styles
14 scripts · 5 stylesheets
JS / CSS size
6.2 KB · 0 B
Page size
81.3 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
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://fsel.edu.vn
- Final URL
- https://fsel.edu.vn
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 122 ms
- HTML size
- 81.3 KB
- Redirect chain
- https://fsel.edu.vn
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does fsel.edu.vn use?
- fsel.edu.vn is built with Next.js, Google Analytics, Meta Pixel.
- Is fsel.edu.vn secure (HTTPS)?
- Yes. fsel.edu.vn uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 19, 2026.
- Who hosts fsel.edu.vn?
- Hosting provider information for fsel.edu.vn is not available yet.
- What is fsel.edu.vn's SEO score?
- fsel.edu.vn scored 55/100 for SEO in the latest analysis (fair).
- What is fsel.edu.vn's overall website score?
- fsel.edu.vn has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card