What technology does lingxiao.ac.cn use?

lingxiao.ac.cn is built with Nginx.

Is lingxiao.ac.cn secure (HTTPS)?

Yes. lingxiao.ac.cn uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Jul 14, 2025.

Who hosts lingxiao.ac.cn?

lingxiao.ac.cn is hosted on ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN.

What is lingxiao.ac.cn's SEO score?

lingxiao.ac.cn scored 35/100 for SEO in the latest analysis (poor).

What is lingxiao.ac.cn's overall website score?

lingxiao.ac.cn has an overall SiteGraph score of 54/100, combining SEO, performance, security, and accessibility.

lingxiao.ac.cn

Last scanned Jul 26, 2026, 3:19 PM

Overall score

Fair

Summary

This website uses Nginx hosted on ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN. SEO is poor (35/100) and accessibility is good (75/100). Security scores poor (35/100) and performance good (80/100). Top issue: Missing <title>.

China

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

Top issues to fix

15 issues found · 6 high priority

TLS certificate expires in -377 days
Security
Renew now (or enable auto-renewal) — an expired certificate blocks visitors with a full-page browser warning.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing title tag
SEO
Add a unique, descriptive <title> tag — it's the single most important on-page SEO element.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
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 viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

+9 more issues — details in the sections below.

SEO

8 issue(s) found

Performance

3.46 s

Security

HTTPS & header checks

Accessibility

3 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.

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN
CDN provider: —
IP address: 114.55.116.153
ASN: AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN)

DNS records

Type	Value
A	114.55.116.153
AAAA	—
MX	—
TXT	—
NS	dns29.hichina.com dns30.hichina.com
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: api.lingxiao.ac.cn
Valid from: Apr 15, 2025
Valid to: Jul 14, 2025
Days until expiry: -377
SAN domains: api.lingxiao.ac.cn

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

0 scripts · 0 stylesheets

JS / CSS size

0 B · 0 B

Page size

57 B

Robots.txt & Sitemap

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

SEO issues

Missing <title>
Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://lingxiao.ac.cn
Final URL: https://lingxiao.ac.cn
HTTP status: 200
HTTP version: HTTP/2
Response time: 3.46 s
HTML size: 57 B
Redirect chain: https://lingxiao.ac.cn

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does lingxiao.ac.cn use?: lingxiao.ac.cn is built with Nginx.
Is lingxiao.ac.cn secure (HTTPS)?: Yes. lingxiao.ac.cn uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Jul 14, 2025.
Who hosts lingxiao.ac.cn?: lingxiao.ac.cn is hosted on ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN.
What is lingxiao.ac.cn's SEO score?: lingxiao.ac.cn scored 35/100 for SEO in the latest analysis (poor).
What is lingxiao.ac.cn's overall website score?: lingxiao.ac.cn has an overall SiteGraph score of 54/100, combining SEO, performance, security, and accessibility.

Top issues to fix

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

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Frequently asked questions