What powers mailgenius.com?
Last seen Jun 2026 · 41 technologies across 21 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| mail tester | #5 | 160 |
| domain name suffix | #3 | 86 |
| spam tester | #3 | 47 |
| what is isp | #13 | 44 |
| email tester | #9 | 41 |
| dkim test | #12 | 38 |
| spam rating | #2 | 34 |
| should subject lines be capitalized | #1 | 33 |
| what does queued mean in gmail | #12 | 27 |
| dmarc | #83 | 25 |
| email spam check tool | #3 | 25 |
| free email testing | #6 | 24 |
| free email testing | #6 | 24 |
| what is imap | #16 | 23 |
| mail tester spam checker | #2 | 23 |
| email spam test | #3 | 23 |
| spf check tool | #93 | 21 |
| mailgenius spam test | #1 | 21 |
| email deliverability checker free | #1 | 21 |
| capitalize email subject | #2 | 18 |
| spam email | #50 | 17 |
| isp meaning | #55 | 17 |
| how to send large files via email | #45 | 17 |
| how to send large files over email | #53 | 17 |
| how to send a large file through email | #59 | 17 |
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
- 61% phone
- 39% desktop
India
Germany
United Kingdom
Brazil
France
Italy
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.74 / 10 · ranked #133,284 of all domains
323 referring domains · OpenPageRank
Search traffic
2,000 est. monthly organic visits (US)
2,599 keywords in Google's top 30
Core Web Vitals
| LCP | 4.3 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 2700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 1.7 MB · 64 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.mailgenius.com | 28 |
| app.mailgenius.com | 24 |
Full technology history →
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Recent changes
- detected Ahrefs Mar 2026
- detected Cloudflare Browser Insights Nov 2025
- dropped Heroku Sep 2025
- detected styled-components Aug 2025