Let's Encrypt
Nginx
Apache HTTP Server
Sectigo
Starfield Tech
Google Trust Services
Amazon Trust Services
AWS Certificate Manager
Shopify Checkout API
ZeroSSL
ComodoCA SSL
Cloudflare SSL
Sales outreach
All 525 of these sites already run phpschool, with the it services and it consulting segment leading at 1 sites. Pitch the products and services that fit that exact stack.
Websites using phpschool
Security & Compliance EV SSL Certificates
Up to 1M sites per list · Segment by country & TLD to cover the full footprint · Unlimited report rebuilds for 1 month
- Live websites detected
- 525
- Countries with usage
- 3
- Top market: South Korea
- 🇰🇷 99.4%
phpschool global heatmap
darker = more sitesphpschool usage by country
by sites detected-
01 🇰🇷 South Korea 507 99.4%
-
02 🇺🇸 United States 2 0.4%
-
03 🇯🇵 Japan 1 0.2%
Need every phpschool site in one market? Unlock phpschool once and rebuild filtered reports as often as you like for a month: by country, TLD, or stack combination, each with up to 20 data points per site.
Start from $39/mophpschool usage by country group
by sites detected-
01 East Asia 2 countries 508 99.6%
-
02 North America 1 country 2 0.4%
-
03 English-Speaking Countries 1 country 2 0.4%
Country groups overlap: a country can belong to several at once (Germany counts toward Europe, Western Europe, the EU and DACH). Percentages are each group's share of the 510 sites with a known country, so they describe overlapping views of the same data and do not add up to 100%.
Top websites using phpschool
by popularity| # | Website | Popularity | StackSpend | Country | TLD |
|---|---|---|---|---|---|
| 01 | unix.co.kr | 300,144 | $373+ | 🇰🇷 South Korea | kr |
| 02 | ssamture.net | 1,132,738 | $177+ | 🇰🇷 South Korea | net |
| 03 | sobaeksts.co.kr | 1,529,900 | $182+ | 🇰🇷 South Korea | kr |
| 04 | iminguide.co.kr | 1,941,722 | $425+ | 🇰🇷 South Korea | kr |
| 05 | pr79.kr | 2,169,981 | $182+ | 🇰🇷 South Korea | kr |
| 06 | ctcf2.com | 2,292,761 | $175+ | 🇰🇷 South Korea | com |
| 07 | dizi.kr | 2,335,306 | $182+ | 🇰🇷 South Korea | kr |
| 08 | scil.kr | 2,503,444 | $182+ | 🇰🇷 South Korea | kr |
| 09 | cpagent.com | 3,004,258 | $175+ | 🇰🇷 South Korea | com |
| 10 | potoland.net | 3,126,591 | $177+ | 🇰🇷 South Korea | net |
| 11 | print79.kr | 4,050,689 | $182+ | 🇰🇷 South Korea | kr |
| 12 | kiwoomens.co.kr | 4,969,570 | $425+ | 🇰🇷 South Korea | kr |
| 13 | nk-now.com | 10,512,497 | $903+ | 🇰🇷 South Korea | com |
| 14 | sunbichon.net | 11,836,644 | $177+ | 🇰🇷 South Korea | net |
| 15 | dawonasset.kr | 12,415,743 | $888+ | 🇰🇷 South Korea | kr |
| 16 | sejongcult.or.kr | 13,366,855 | $182+ | 🇰🇷 South Korea | kr |
| 17 | occamsrazr.net | 14,265,786 | $65+ | 🇺🇸 United States | net |
| 18 | keta.net | 14,852,184 | $177+ | 🇰🇷 South Korea | net |
| 19 | gdfamily.or.kr | 15,270,962 | $182+ | 🇰🇷 South Korea | kr |
| 20 | jaeyeonchung.com | 15,743,818 | $175+ | 🇰🇷 South Korea | com |
This is 20 of 525 websites. Download up to 1M sites per list as CSV, enriched with firmographics.
Download the full listCompanies using phpschool
sample, enriched| Company | Website | Employees | Industry | Country | Founded |
|---|---|---|---|---|---|
| JS Lab |
 jslab.kr
|
1-10 | IT Services and IT Consulting | 🇰🇷 South Korea | 2018 |
| KOPECS | kopecs.com | 1-10 | - | 🇰🇷 South Korea | - |
| YELLOWPHANT |
 yellowphant.co.kr
|
1-10 | Design Services | 🇰🇷 South Korea | - |
| Lian Contents | liantv.com | 1-10 | Broadcast Media Production and Distribution | 🇰🇷 South Korea | 2008 |
A sample of enriched company profiles. Full exports include company, social, and spend signals on every domain.
phpschool usage by industry
by TLD segment-
01 IT Services and IT Consulting 1 33.3%
-
02 Broadcast Media Production and Distribution 1 33.3%
-
03 Design Services 1 33.3%
phpschool industry distribution chart
share by domain segmentphpschool users by company revenue
2 companiesTechnologies related to phpschool
EV SSL CertificatesPut it to work
What teams do with the phpschool list
Competitor analysis
Selling Let's Encrypt, Nginx, or another EV SSL Certificates product? These 525 phpschool users are your displacement audience, filterable by country and company size.
Market research
Top markets for phpschool: South Korea (99.4%), United States (0.4%), Japan (0.2%). Size the EV SSL Certificates market by geography before you build or invest.
Free for non-profits, academia & data journalists - non-commercial and public-interest use, on request.
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