What powers as9a.com?
Last seen Sep 2026 · 13 technologies across 8 categories
Authentication
CDN
IaaS
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Security
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Google-Extended Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- Webzio-Extended Blocked
- meta-externalagent Allowed
Search and AI assistants
- Amazonbot Blocked
- PerplexityBot Blocked
- YouBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 19 AI crawlers we track are not mentioned and are blocked by the catch-all rule (User-agent: *).
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Open Page Rank
0.10 / 10 · ranked #102,055,689 of all domains
0 referring domains · OpenPageRank
Page
- Language: Vietnamese
- CDN: Cloudflare
- Weight: 4.0 MB · 177 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 64,581,378
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| as9a.com | 13 |
| www.as9a.com | 11 |
Full technology history →
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Recent changes
- detected Priority Hints Aug 2026