What powers superlib.net?
Last seen Oct 2026 · 8 technologies across 5 categories
Analytics
Baidu Analytics (百度统计)
since Sep 2022
CNZZ
since Sep 2022
JavaScript libraries
Programming languages
Java
since May 2017
Security
HSTS
since Apr 2026
Web Servers
Apache Tomcat
since Feb 2022
Tengine
since May 2017
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
Japan
China
Singapore
United States
Hong Kong SAR China
Taiwan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.20 / 10 · ranked #453,220 of all domains
109 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Weight: 0.1 MB · 21 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- United Combined Digital Reference Services
- Country: People's Republic of China
From Wikidata (CC0).
Infrastructure
- Registered Mar 2008 (18 years) via Alibaba Cloud Computing (Beijing) Co., Ltd., renews Mar 2027
- Hosted on CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation (42.62.107.198)
- Email: 263xmail.com
- Email security: no SPF record, no DMARC record
- Common Crawl link graph: rank 700,053, 86 hosts
DNS records as swept Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| book.dglib.superlib.net | 4 |
| www.dglib.superlib.net | 4 |
| zjlib.superlib.net | 3 |
| auth.superlib.net | 2 |
| book.ucdrs.superlib.net | 2 |
| fx.fulink.superlib.net | 2 |
| qw.ucdrs.superlib.net | 2 |
| user.superlib.net | 2 |
| www.ucdrs.superlib.net | 2 |
| www.superlib.net | 1 |