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SGSiteGraph

ustc.edu.cn

中国科学技术大学

Last scanned Jul 25, 2026, 2:25 AM · 1 view

79

Overall score

Fair

Summary

This website uses Nginx hosted on ERX-CERNET-BKB - China Education and Research Network Center, CN. SEO is fair (60/100) and accessibility is good (75/100). Security scores good (85/100) and performance excellent (100/100). Top issue: Missing meta description.

China
Hosted on ERX-CERNET-BKB - China Education and Research Network Center, CN

Top issues to fix

11 issues found · 2 high priority

  • 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 canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

+5 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

451 ms

85

Security

HTTPS & header checks

75

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.

Meta tags

Title
中国科学技术大学
Description
Canonical
Language
Charset
UTF-8
Viewport
width=device-width,user-scalable=0,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0
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.

jQueryNginx

Hosting & CDN

CDN provider
—
IP address
202.38.64.246
ASN
AS4538 (ERX-CERNET-BKB - China Education and Research Network Center, CN)

DNS records

TypeValue
A
  • 202.38.64.246
AAAA
  • 2001:da8:d800:642::248
MX
  • smtp.ustc.edu.cn
TXT
  • MS=ms26813611
  • v=spf1 ip4:202.38.64.8 ip4:202.38.64.16 ip4:202.38.64.46 ip4:210.45.120.152 ip4:202.141.161.73 ip4:195.128.10.69 ip4:199.168.14.54 ip4:202.141.163.236 ip4:205.201.128.18 ip4:210.45.71.12 ip4:195.128.10.18 ip4:195.128.10.15 -all
  • google-site-verification=n_uAijUqmjntOJL0L8N4SIIdw_3cAngmXFBIYgIDNkg
NS
  • ns.ustc.edu.cn
  • mx.ustc.edu.cn
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
ZeroSSL GmbH
Subject
ustc.edu.cn
Valid from
Jun 28, 2026
Valid to
Sep 26, 2026
Days until expiry
63
SAN domains
ustc.edu.cn

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 3 · H3 0

Links

25 internal · 41 external · 5 broken

Images

16 total · 7 missing alt

Scripts / Styles

27 scripts · 12 stylesheets

JS / CSS size

355 KB · 60.8 KB

Page size

39.2 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
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
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text
  • Missing <html lang> attribute

Scan details

Requested URL
https://ustc.edu.cn
Final URL
https://ustc.edu.cn
HTTP status
200
HTTP version
HTTP/2
Response time
451 ms
HTML size
39.2 KB
Redirect chain
https://ustc.edu.cn

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does ustc.edu.cn use?
ustc.edu.cn is built with jQuery, Nginx.
Is ustc.edu.cn secure (HTTPS)?
Yes. ustc.edu.cn uses TLS 1.3 with a certificate issued by ZeroSSL GmbH, valid until Sep 26, 2026.
Who hosts ustc.edu.cn?
ustc.edu.cn is hosted on ERX-CERNET-BKB - China Education and Research Network Center, CN.
What is ustc.edu.cn's SEO score?
ustc.edu.cn scored 60/100 for SEO in the latest analysis (fair).
What is ustc.edu.cn's overall website score?
ustc.edu.cn has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.