What powers ndsl.kr?
Last seen Sep 2026 · 33 technologies across 15 categories
Analytics
Google Analytics
since Apr 2021
CMS
Databases
MySQL
since Mar 2021
Font scripts
JavaScript graphics
JavaScript libraries
Miscellaneous
Operating systems
UNIX
since Aug 2018
Page builders
wpBakery
since Feb 2022
Programming languages
Security
HSTS
since Dec 2023
UI frameworks
Animate.css
since Mar 2021
Bootstrap
since Jan 2024
Web server extensions
Web servers
Apache Tomcat
since Aug 2018
WordPress plugins
WordPress Super Cache
since Mar 2021
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 73% desktop
- 27% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.70 / 10 · ranked #312,537 of all domains
125 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean
- Weight: 3.1 MB · 79 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- National Digital Science Library
- Country: South Korea
From Wikidata (CC0).
Infrastructure
- Registered Mar 2007 (19 years), renews Mar 2028
- Hosted on KREONET-AS-KR KISTI (203.250.215.81)
- DNS: kisti.re.kr
- Email: no MX record returned
- SSL: GlobalSign, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 625,149, 18 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| guardian.ndsl.kr | 24 |
| scent.ndsl.kr | 10 |
| m.ndsl.kr | 5 |
| www.ndsl.kr | 4 |