What powers rfcafe.com?
Last seen Jun 2026 · 9 technologies across 8 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| doppler frequency | #8 | 800 |
| national radio institute | #4 | 650 |
| occam's razor | #91 | 350 |
| resistor chart | #3 | 230 |
| what is velocity of sound | #7 | 230 |
| nato letters | #39 | 230 |
| nato alphabet | #57 | 230 |
| nato alphabet | #45 | 230 |
| exponent | #64 | 210 |
| resistor values | #2 | 210 |
| what is coordinated universal time | #67 | 190 |
| watkins johnson | #14 | 190 |
| dtmf signal | #16 | 170 |
| standard cap values | #2 | 160 |
| standard res | #3 | 160 |
| velocity of sound | #25 | 160 |
| acoustic speed | #33 | 160 |
| cathode ray tube tv | #46 | 130 |
| cathode ray tube | #47 | 130 |
| rca | #58 | 130 |
| rutherford bohr model | #84 | 130 |
| duty ratio | #6 | 120 |
| what is the speed of sound | #13 | 110 |
| us stamp price history | #3 | 95 |
| nato phonetic alphabet | #54 | 85 |
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
- 65% desktop
- 35% phone
United States
United Kingdom
Canada
Australia
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.07 / 10 · ranked #240,084 of all domains
230 referring domains · OpenPageRank
Search traffic
12,200 est. monthly organic visits (US)
6,494 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 0.7 MB · 75 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| rfcafe.com | 9 |
| www.rfcafe.com | 6 |
Full technology history →
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Recent changes
- dropped Google Font API Mar 2026
- detected Google Font API Jan 2026
- detected Funding Choices Aug 2025
- detected Google AdSense Aug 2025
- detected reCAPTCHA Aug 2025