What powers 
wrtn.io?
Last seen Oct 2026 · 33 technologies across 17 categories
Analytics
CDN
CMS
Customer data platform
Databases
Development
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
RUM
Security
SEO
Tag managers
Webmail
WordPress plugins
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
The other 20 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
- Nov 2026 googleother added to robots.txt
- Nov 2026 bytespider added to robots.txt
- Nov 2026 ccbot added to robots.txt
- Nov 2026 claude-web added to robots.txt
- Nov 2026 applebot-extended added to robots.txt
- Nov 2026 Content Signals changed
AI Crawlers
13 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 79% desktop
- 21% phone
South Korea
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.93 / 10 · ranked #625,356 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Korean (South Korea)
- CDN: Cloudflare
- Weight: 21.7 MB · 55 requests
- WordPress theme: wrtn-theme · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 뤼튼테크놀로지스
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.26.8.97, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 109,969, 3 hosts
- Verified with: Apple Business, Atlassian, Cloudflare, Figma, Google, Jamf, Microsoft 365, Notion
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| career.wrtn.io | 22 |
| wrtn.io | 18 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Clipboard.js Mar 2026
- dropped Contact Form 7 Mar 2026
- dropped jQuery Mar 2026
- dropped jQuery CDN Mar 2026
- dropped Kakao Mar 2026
- dropped Prefix-Free Mar 2026
- dropped Priority Hints Mar 2026
- dropped Prism Mar 2026
- dropped PWA Mar 2026
- dropped Slick Mar 2026
- detected Lenis Feb 2026
- dropped Nginx Feb 2026
- detected Polylang Feb 2026
- detected Twitter Emoji (Twemoji) Feb 2026
- detected Unpkg Feb 2026
- detected Yoast SEO Feb 2026
- detected Mixpanel Jan 2026
- detected Priority Hints Jan 2026