What powers 
iecs.vn?
Last seen Mar 2026 · 32 technologies across 16 categories
Analytics
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Live chat
Miscellaneous
Performance
Programming languages
Security
Tag managers
Video players
Web servers
WordPress plugins
AI Crawlers
Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
The other 25 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
- Sep 2026 bytespider added to robots.txt
- Sep 2026 amazonbot added to robots.txt
- Sep 2026 applebot-extended added to robots.txt
- Sep 2026 meta-externalagent added to robots.txt
- Sep 2026 ccbot added to robots.txt
- Sep 2026 claudebot added to robots.txt
AI Crawlers
8 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 96% phone
- 4% desktop
Vietnam
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.51 / 10 · ranked #883,457 of all domains
43 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Vietnamese
- CDN: Cloudflare
- Weight: 42.6 MB · 709 requests
- WordPress theme: enfold · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- IECS - Chuyên tư vấn Du Học Nghề Đức Hàng Đầu Việt Nam
- Industry: Education (declares
EducationalOrganization) - Profiles: Facebook, X
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.53.37, IPv6)
- DNS: Cloudflare DNS
- Email: iecs.vn
- Email security: SPF (soft fail), DMARC reject
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 7,847,922, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted