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SGSiteGraph

tgb.cn

502 Bad Gateway

Last scanned Aug 24, 2026, 1:23 PM

78

Overall score

Fair

Summary

This website uses jQuery hosted on ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN. SEO is fair (65/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

China
Hosted on ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN

Top issues to fix

12 issues found · 4 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 viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • 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.

+6 more issues — details in the sections below.

65

SEO

5 issue(s) found

100

Performance

344 ms

65

Security

HTTPS & header checks

85

Accessibility

2 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.

Contact

Email, phone, and address published on this site's own pages.

Source: https://tgb.cn/contact

Meta tags

Title
502 Bad Gateway
Description
Canonical
Language
Charset
Viewport
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

jQuery

Hosting & CDN

CDN provider
—
IP address
121.41.238.44
ASN
AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN)

DNS records

TypeValue
A
  • 121.41.238.44
AAAA—
MX—
TXT—
NS
  • vip4.alidns.com
  • vip3.alidns.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
DigiCert, Inc.
Subject
*.tgb.cn
Valid from
Nov 17, 2025
Valid to
Dec 18, 2026
Days until expiry
115
SAN domains
*.tgb.cn, tgb.cn

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 3 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

2 scripts · 0 stylesheets

JS / CSS size

0 B · 0 B

Page size

92.8 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
4
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute
  • Missing viewport meta tag

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://tgb.cn
Final URL
https://tgb.cn
HTTP status
200
HTTP version
HTTP/2
Response time
343 ms
HTML size
92.8 KB
Redirect chain
https://tgb.cn

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does tgb.cn use?
tgb.cn is built with jQuery.
Is tgb.cn secure (HTTPS)?
Yes. tgb.cn uses TLS 1.2 with a certificate issued by DigiCert, Inc., valid until Dec 18, 2026.
Who hosts tgb.cn?
tgb.cn is hosted on ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN.
What is tgb.cn's SEO score?
tgb.cn scored 65/100 for SEO in the latest analysis (fair).
What is tgb.cn's overall website score?
tgb.cn has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
Is tgb.cn hiring?
tgb.cn has a careers page; check it directly for current openings.