What technology does sfn.cn use?

sfn.cn is built with Vue.js, Nuxt, Nginx.

Is sfn.cn secure (HTTPS)?

Yes. sfn.cn uses TLS 1.2 with a certificate issued by China Financial Certification Authority, valid until Mar 11, 2027.

What is sfn.cn's SEO score?

sfn.cn scored 60/100 for SEO in the latest analysis (fair).

What is sfn.cn's overall website score?

sfn.cn has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.

sfn.cn

国科云-国科控股旗下域名管理专家-域名注册商-域名解析-DNS解析-云解析-IPv6改造

Last scanned Jul 26, 2026, 5:17 AM · 1 view

Overall score

Fair

Summary

国科云，国科控股旗下云计算服务商，多年为80%的国家机关、40%的大型央企、70%的大型金融机构以及100+中国500强企业等关键领域核心客户提供域名注册、域名监测、域… This website uses Nuxt hosted on CSTNET-AS-AP - Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS), CN. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance good (75/100). Top issue: Title longer than 60 characters.

国科云，国科控股旗下云计算服务商，多年为80%的国家机关、40%的大型央企、70%的大型金融机构以及100+中国500强企业等关键领域核心客户提供域名注册、域名监测、域名解析、SSL证书等一站式域名管理服务以及云解析、云监测、云盾、云服务器等全方位的云计算产品与服务。

China

Hosted on CSTNET-AS-AP - Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS), CN

Top issues to fix

9 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.
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.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.

+3 more issues — details in the sections below.

SEO

6 issue(s) found

Performance

397 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.

Contact

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

Email: service@cnnic.cn tousu@guokeyun.com u003Eservice@cnnic.cn

Source: https://www.guokeyun.com/helpCenter/helpDetail.html?id=69

Meta tags

Title: 国科云-国科控股旗下域名管理专家-域名注册商-域名解析-DNS解析-云解析-IPv6改造
Description: 国科云，国科控股旗下云计算服务商，多年为80%的国家机关、40%的大型央企、70%的大型金融机构以及100+中国500强企业等关键领域核心客户提供域名注册、域名监测、域名解析、SSL证书等一站式域名管理服务以及云解析、云监测、云盾、云服务器等全方位的云计算产品与服务。
Canonical
Language: en
Charset: utf-8
Viewport: width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Vue.js Nuxt Nginx

Hosting & CDN

Hosting provider: CSTNET-AS-AP - Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS), CN
CDN provider: —
IP address: 210.72.13.177
ASN: AS7497 (CSTNET-AS-AP - Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS), CN)

DNS records

Type	Value
A	210.72.13.177
AAAA	2409:8c04:1001:1e::bb 2409:8c04:1001:1e::13
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.2
Issuer: China Financial Certification Authority
Subject: www.guokeyun.com
Valid from: Feb 25, 2026
Valid to: Mar 11, 2027
Days until expiry: 227
SAN domains: www.guokeyun.com, guokeyun.com, www.sfn.cn, sfn.cn

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

54 internal · 13 external · 0 broken

Images

74 total · 6 missing alt

Scripts / Styles

32 scripts · 11 stylesheets

JS / CSS size

1.5 MB · 697 KB

Page size

67.6 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 4
sitemap.xml: Found
URLs in sitemap: 749

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags

Scan details

Requested URL: https://sfn.cn
Final URL: https://www.guokeyun.com/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 396 ms
HTML size: 67.6 KB
Redirect chain: https://sfn.cn → https://www.guokeyun.com/

See something wrong on this report? Request a correction

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