What technology does dilib.vn use?

dilib.vn is built with PHP, jQuery, Google Analytics, Nginx.

Is dilib.vn secure (HTTPS)?

Yes. dilib.vn uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 18, 2026.

What is dilib.vn's SEO score?

dilib.vn scored 65/100 for SEO in the latest analysis (fair).

What is dilib.vn's overall website score?

dilib.vn has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.

dilib.vn

Chia Sẻ Sách, Đọc Sách Online, Thư Viện Ebook PDF, Thư Viện Sách Nói, Sách Miễn Phí, Truyện Tranh, Âm Nhạc, Rạp Chiếu Phim, Blog

Last scanned Jul 26, 2026, 12:25 AM · 2 views

Overall score

Fair

Summary

Digital Library (dilib.vn) là một trang web chia sẻ sách điện tử, sách nói, radio, âm nhạc, hình ảnh, phim, video... This website uses Nginx hosted on VNPT-AS-VN - Vietnam Posts and Telecommunications (VNPT), VN. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Digital Library (dilib.vn) là một trang web chia sẻ sách điện tử, sách nói, radio, âm nhạc, hình ảnh, phim, video... Chuyển đổi số là xu thế tất yếu trong kỷ nguyên 4.0; hoặc là thay đổi hoặc là chết ...

Vietnam

Hosted on VNPT-AS-VN - Vietnam Posts and Telecommunications (VNPT), VN

Top issues to fix

10 issues found · 3 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.
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.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

+4 more issues — details in the sections below.

SEO

5 issue(s) found

100

Performance

658 ms

Security

HTTPS & header checks

Accessibility

1 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.

YouTube

Meta tags

Title: Chia Sẻ Sách, Đọc Sách Online, Thư Viện Ebook PDF, Thư Viện Sách Nói, Sách Miễn Phí, Truyện Tranh, Âm Nhạc, Rạp Chiếu Phim, Blog
Description: Digital Library (dilib.vn) là một trang web chia sẻ sách điện tử, sách nói, radio, âm nhạc, hình ảnh, phim, video... Chuyển đổi số là xu thế tất yếu trong kỷ nguyên 4.0; hoặc là thay đổi hoặc là chết ...
Canonical: https://dilib.vn/
Language: vi
Charset: UTF-8
Viewport: width=device-width, minimum-scale=0.33, maximum-scale=3.0, initial-scale=1.0
Robots meta: INDEX,FOLLOW,ARCHIVE
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP jQuery Google Analytics Nginx

Hosting & CDN

Hosting provider: VNPT-AS-VN - Vietnam Posts and Telecommunications (VNPT), VN
CDN provider: —
IP address: 123.30.137.221
ASN: AS7643 (VNPT-AS-VN - Vietnam Posts and Telecommunications (VNPT), VN)

DNS records

Type	Value
A	123.30.137.221
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.2
Issuer: Let's Encrypt
Subject: dilib.vn
Valid from: Jun 20, 2026
Valid to: Sep 18, 2026
Days until expiry: 54
SAN domains: dilib.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 6 · H3 0

Links

182 internal · 7 external · 0 broken

Images

166 total · 0 missing alt

Scripts / Styles

12 scripts · 4 stylesheets

JS / CSS size

132 KB · 37.7 KB

Page size

90.1 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 9
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
No H1 heading found
No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://dilib.vn
Final URL: https://dilib.vn
HTTP status: 200
HTTP version: HTTP/2
Response time: 657 ms
HTML size: 90.1 KB
Redirect chain: https://dilib.vn

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does dilib.vn use?: dilib.vn is built with PHP, jQuery, Google Analytics, Nginx.
Is dilib.vn secure (HTTPS)?: Yes. dilib.vn uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 18, 2026.
Who hosts dilib.vn?: dilib.vn is hosted on VNPT-AS-VN - Vietnam Posts and Telecommunications (VNPT), VN.
What is dilib.vn's SEO score?: dilib.vn scored 65/100 for SEO in the latest analysis (fair).
What is dilib.vn's overall website score?: dilib.vn has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.