tailieu.vn
TaiLieu.VN: Kho Tài Liệu Học Tập, Luận Văn, Đề Thi, Giáo Án & Biểu Mẫu
Last scanned Aug 5, 2026, 4:00 PM · 16 views
Overall score
Great
Summary
Thư viện hàng triệu tài liệu học tập, luận văn, giáo án, đề thi, tiểu luận, ebook, sáng kiến kinh nghiệm, biểu mẫu văn bản và báo cáo. This website uses Nuxt. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
TaiLieu.VN
Thư viện hàng triệu tài liệu học tập, luận văn, giáo án, đề thi, tiểu luận, ebook, sáng kiến kinh nghiệm, biểu mẫu văn bản và báo cáo. Tải tài liệu miễn phí tại TaiLieu.VN.
Top issues to fix
6 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
4 issue(s) found
Performance
663 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 89
- SEO
- 80
- Security
- 90
- Performance
- 90
- Accessibility
- 100
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
- TaiLieu.VN: Kho Tài Liệu Học Tập, Luận Văn, Đề Thi, Giáo Án & Biểu Mẫu
- Description
- Thư viện hàng triệu tài liệu học tập, luận văn, giáo án, đề thi, tiểu luận, ebook, sáng kiến kinh nghiệm, biểu mẫu văn bản và báo cáo. Tải tài liệu miễn phí tại TaiLieu.VN.
- Canonical
- https://tailieu.vn/
- Language
- vi
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 14.225.236.180
- 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
- tailieu.vn
- Valid from
- Jul 28, 2026
- Valid to
- Oct 26, 2026
- Days until expiry
- 81
- SAN domains
- tailieu.vn
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 8 · H3 88
Links
93 internal · 7 external · 0 broken
Images
80 total · 0 missing alt
Scripts / Styles
4 scripts · 5 stylesheets
JS / CSS size
559 KB · 205 KB
Page size
505 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://tailieu.vn
- Final URL
- https://tailieu.vn
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 653 ms
- HTML size
- 505 KB
- Redirect chain
- https://tailieu.vn
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does tailieu.vn use?
- tailieu.vn is built with Vue.js, Nuxt, Google Analytics, Nginx.
- Is tailieu.vn secure (HTTPS)?
- Yes. tailieu.vn uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 26, 2026.
- Who hosts tailieu.vn?
- Hosting provider information for tailieu.vn is not available yet.
- What is tailieu.vn's SEO score?
- tailieu.vn scored 80/100 for SEO in the latest analysis (great).
- What is tailieu.vn's overall website score?
- tailieu.vn has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- What company operates tailieu.vn?
- tailieu.vn is operated by TaiLieu.VN. Thư viện hàng triệu tài liệu học tập, luận văn, giáo án, đề thi, tiểu luận, ebook, sáng kiến kinh nghiệm, biểu mẫu văn bản và báo cáo. Tải tài liệu miễn phí tại TaiLieu.VN.
- Has tailieu.vn's score changed over time?
- tailieu.vn's overall score has declined by 3 points (from 92 to 89) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card