What powers 
opensurvey.co.kr?
Last seen Sep 2026 · 51 technologies across 22 categories
Analytics
CDN
CMS
CRM
Databases
Font scripts
JavaScript Frameworks
JavaScript libraries
Live chat
Marketing automation
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
SEO
Tag managers
UI frameworks
Web servers
Webmail
Widgets
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
- 97% desktop
- 3% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #324,175 of all domains
80 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean (South Korea)
- Weight: 9.2 MB · 174 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Registered Aug 2011 (15 years), renews Aug 2029
- Hosted on Amazon Web Services (13.124.214.36)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 40,801, 14 hosts
- Verified with: Google, OpenAI
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 |
|---|---|
| blog.opensurvey.co.kr | 29 |
| contents.opensurvey.co.kr | 17 |
| www.opensurvey.co.kr | 17 |
| hello.opensurvey.co.kr | 15 |
| surveyfront.opensurvey.co.kr | 12 |
| openanalytics.opensurvey.co.kr | 10 |
| diy.opensurvey.co.kr | 8 |
| client.opensurvey.co.kr | 3 |
Full technology history →
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Recent changes
- dropped HTTP/3 Jul 2026
- detected Priority Hints Jul 2026
- detected Twitter Emoji (Twemoji) Dec 2025