What powers pen.go.kr?
Last seen Jun 2026 · 71 technologies across 25 categories
Analytics
Authentication
CDN
CMS
Databases
Ecommerce
Editors
Font scripts
Issue trackers
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Maps
Miscellaneous
Operating systems
Performance
Programming languages
Security
UI frameworks
Video players
Web frameworks
Web server extensions
Web servers
Webmail
Widgets
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| busan high schools | #10 | 1 |
| high schools in busan | #10 | 1 |
| how old are 11th graders in korea | #8 | 1 |
| busan schools | #89 | 0 |
| busan high schools | #60 | 0 |
| busan high schools | #36 | 0 |
| busan chinese | #66 | 0 |
| schools in busan south korea | #81 | 0 |
| schools in busan | #41 | 0 |
| seoul metropolitan office of education | #73 | 0 |
| public schools korea | #97 | 0 |
| 40000x3 | #28 | 0 |
| 50000x60 | #37 | 0 |
| 50000x2 | #64 | 0 |
| high schools in busan | #30 | 0 |
| insa pen | #10 | 0 |
| epik lesson plan examples | #47 | 0 |
| 20000x5 | #38 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 61% desktop
- 33% phone
- 6% tablet
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.50 / 10 · ranked #158,579 of all domains
167 referring domains · OpenPageRank
Search traffic
3 est. monthly organic visits (US)
18 keywords in Google's top 30
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 6.6 MB · 28 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| best.pen.go.kr | 13 |
| bmcm.pen.go.kr | 11 |
| visit.pen.go.kr | 11 |
| b-ingang.pen.go.kr | 10 |
| care.pen.go.kr | 10 |
| jinhakai.pen.go.kr | 10 |
| www.pen.go.kr | 10 |
| o365.pen.go.kr | 9 |
| reading.pen.go.kr | 9 |
| bgen.pen.go.kr | 8 |
| bsesc.pen.go.kr | 7 |
| childedu1.pen.go.kr | 7 |
| haeundaesports.pen.go.kr | 7 |
| hakbumo.pen.go.kr | 7 |
| hischool.pen.go.kr | 7 |
| home.pen.go.kr | 7 |
| m365.pen.go.kr | 7 |
| note.pen.go.kr | 7 |
| to.pen.go.kr | 7 |
| behm.pen.go.kr | 6 |
| bsse.pen.go.kr | 6 |
| stu.pen.go.kr | 6 |
| cf.pen.go.kr | 5 |
| co-school.pen.go.kr | 5 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Axios Mar 2026
- dropped LottieFiles Mar 2026
- dropped reCAPTCHA Mar 2026
- dropped lit-element Jan 2026
- dropped lit-html Jan 2026
- detected LottieFiles Oct 2025