What powers jump-tandem.cz?
Last seen Oct 2026 · 43 technologies across 23 categories
Analytics
CDN
Ecommerce
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Live chat
Maps
Miscellaneous
Operating systems
Page builders
Performance
Programming languages
Security
Static site generator
Tag managers
UI frameworks
Video players
Web servers
Webmail
Widgets
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Allowed
- ClaudeBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
Search and AI assistants
- Claude-SearchBot Allowed
- OAI-SearchBot Allowed
- PerplexityBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 25 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
- Oct 2026 chatgpt-user added to robots.txt
- Oct 2026 claude-searchbot added to robots.txt
- Oct 2026 applebot-extended added to robots.txt
- Oct 2026 perplexitybot added to robots.txt
- Oct 2026 llms-full.txt appeared
- Oct 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 84% phone
- 16% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.23 / 10 · ranked #1,222,331 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 4.6 MB · 42 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- JUMP-TANDEM
- Industry: Sports and fitness (declares
SportsOrganization) - Profiles: Facebook
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.44.67, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 11,878,773, 9 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.jump-tandem.cz | 25 |
| swc2025.jump-tandem.cz | 20 |
| ec2023.jump-tandem.cz | 12 |
| wc2024.jump-tandem.cz | 11 |
| video.jump-tandem.cz | 10 |
| app.jump-tandem.cz | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Astro Oct 2026
- detected Cloudflare Browser Insights Oct 2026
- detected WhatsApp Business Chat Oct 2026
- dropped reCAPTCHA Sep 2026
- detected Cloudflare Bot Management Jul 2026
- detected Vimeo Jul 2026
- dropped Facebook Pixel Apr 2026
- dropped FancyBox Apr 2026
- detected Priority Hints Apr 2026
- detected reCAPTCHA Apr 2026
- dropped WhatsApp Business Chat Apr 2026
- detected LottieFiles Mar 2026
- detected Open Graph Mar 2026
- detected Smartlook Mar 2026