What powers zencal.io?
Last seen Jun 2026 · 38 technologies across 21 categories
Advertising
Analytics
Authentication
CDN
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Live chat
Marketing automation
Miscellaneous
PaaS
Page builders
Payment processors
Performance
Security
Static site generator
Tag managers
UI frameworks
Video players
Webmail
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| doodle alternatives | #1 | 220 |
| calendly competitors | #1 | 180 |
| calendly free alternative | #1 | 150 |
| doodle alternative | #2 | 120 |
| calendar and scheduling software | #3 | 86 |
| best meeting schedulers | #1 | 52 |
| best meeting scheduler | #1 | 52 |
| app like calendly | #1 | 52 |
| doodle app alternatives | #1 | 43 |
| free alternative to calendly | #1 | 33 |
| scheduling program | #5 | 32 |
| scheduling tools | #7 | 31 |
| calendly alternative | #1 | 29 |
| scheduling application | #8 | 29 |
| meeting planner software | #1 | 29 |
| best meeting scheduler app | #1 | 27 |
| scheduling tool | #9 | 27 |
| apps like calendly | #2 | 23 |
| scheduling tool like doodle | #1 | 21 |
| doodle alternatives free | #2 | 18 |
| great zoom backgrounds | #3 | 17 |
| best group scheduling tool | #1 | 15 |
| automatic meeting scheduler | #2 | 15 |
| doodle scheduling alternative | #1 | 15 |
| scheduling applications | #8 | 13 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 56% phone
- 44% desktop
Poland
Germany
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.29 / 10 · ranked #205,203 of all domains
100 referring domains · OpenPageRank
Search traffic
1,700 est. monthly organic visits (US)
739 keywords in Google's top 30
Core Web Vitals
| LCP | 2.1 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 6.6 MB · 137 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.zencal.io | 23 |
| zencal.io | 19 |
| app.zencal.io | 18 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Tawk.to May 2026
- detected YouTube May 2026
- detected Chatwoot Apr 2026
- dropped Cookiebot Apr 2026
- dropped Microsoft Advertising Apr 2026
- detected Priority Hints Mar 2026
- detected Tawk.to Mar 2026
- detected Cloudflare Browser Insights Nov 2025
- detected Pipedrive Aug 2025