What powers 
ieee-ius.org?
Last seen Oct 2026 · 66 technologies across 27 categories
Analytics
Caching
CDN
CMS
Cookie compliance
Databases
Font scripts
Hosting
Issue trackers
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Retargeting
RUM
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
Widgets
WordPress plugins
WordPress themes
AI Crawlers
Blocks 7 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
Search and AI assistants
- Amazonbot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 26 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
- Nov 2026 bytespider added to robots.txt
- Nov 2026 *: Restricted (was Allowed)
- Nov 2026 amazonbot added to robots.txt
- Nov 2026 anthropic-ai added to robots.txt
- Nov 2026 gptbot added to robots.txt
- Nov 2026 ccbot added to robots.txt
AI Crawlers
7 of 33 AI crawlers blocked
Standards: llms.txt
Audience
- 86% desktop
- 14% phone
United States
Canada
South Korea
Taiwan
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.56 / 10 · ranked #835,451 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 2.7 MB · 34 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- IUS 2025 | Utrecht, Netherlands
- Industry: Arts and entertainment (declares
Event) - Profiles: LinkedIn, Facebook
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.0.235, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, CAA
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 2,466,801, 6 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| 2021.ieee-ius.org | 32 |
| 2022.ieee-ius.org | 32 |
| 2020.ieee-ius.org | 18 |
| ieee-ius.org | 18 |
| 2025.ieee-ius.org | 14 |
| 2023.ieee-ius.org | 10 |
Full technology history →
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