What technology does dualeotruyenpe.vip use?

We did not detect any specific technologies for dualeotruyenpe.vip in the latest scan.

Is dualeotruyenpe.vip secure (HTTPS)?

Yes. dualeotruyenpe.vip uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 23, 2026.

Who hosts dualeotruyenpe.vip?

Hosting provider information for dualeotruyenpe.vip is not available yet.

What is dualeotruyenpe.vip's SEO score?

dualeotruyenpe.vip scored 60/100 for SEO in the latest analysis (fair).

What is dualeotruyenpe.vip's overall website score?

dualeotruyenpe.vip has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.

Has dualeotruyenpe.vip's score changed over time?

dualeotruyenpe.vip's overall score has declined by 2 points (from 79 to 77) since Jul 27, 2026.

dualeotruyenpe.vip

dualeotruyenpe.vip | 520: Web server is returning an unknown error

Last scanned Aug 4, 2026, 6:00 PM · 9 views

Overall score

Fair

Summary

SEO is fair (60/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

Top issues to fix

11 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.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.

+5 more issues — details in the sections below.

SEO

6 issue(s) found

Performance

2.06 s

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-2 overall since Jul 27, 2026

Overall: 77
SEO: 60
Security: 65
Performance: 90
Accessibility: 100

Meta tags

Title: dualeotruyenpe.vip | 520: Web server is returning an unknown error
Description
Canonical
Language: en-US
Charset: UTF-8
Viewport: width=device-width,initial-scale=1
Robots meta: noindex, nofollow
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: 172.67.171.134
ASN: —

DNS records

Type	Value
A	172.67.171.134 104.21.87.245
AAAA	2606:4700:3036::ac43:ab86 2606:4700:3035::6815:57f5
MX	—
TXT	—
NS	shubhi.ns.cloudflare.com jakub.ns.cloudflare.com
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: dualeotruyenpe.vip
Valid from: Jul 25, 2026
Valid to: Oct 23, 2026
Days until expiry: 79
SAN domains: dualeotruyenpe.vip, *.dualeotruyenpe.vip

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 1 · H2 2 · H3 5

Links

0 internal · 2 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

1 scripts · 1 stylesheets

JS / CSS size

375 B · 0 B

Page size

30.8 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 13
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Title longer than 60 characters
Missing meta description
Missing canonical link
No structured data (JSON-LD) found
Missing OpenGraph tags
sitemap.xml not found

Scan details

Requested URL: https://dualeotruyenpe.vip
Final URL: https://dualeotruyenpe.vip/vi-vn/
HTTP status: 200
HTTP version: HTTP/2
Response time: 2.06 s
HTML size: 30.8 KB
Redirect chain: https://dualeotruyenpe.vip → https://dualeotruyenpe.vip/vi-vn/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does dualeotruyenpe.vip use?: We did not detect any specific technologies for dualeotruyenpe.vip in the latest scan.
Is dualeotruyenpe.vip secure (HTTPS)?: Yes. dualeotruyenpe.vip uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 23, 2026.
Who hosts dualeotruyenpe.vip?: Hosting provider information for dualeotruyenpe.vip is not available yet.
What is dualeotruyenpe.vip's SEO score?: dualeotruyenpe.vip scored 60/100 for SEO in the latest analysis (fair).
What is dualeotruyenpe.vip's overall website score?: dualeotruyenpe.vip has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
Has dualeotruyenpe.vip's score changed over time?: dualeotruyenpe.vip's overall score has declined by 2 points (from 79 to 77) since Jul 27, 2026.