JavaScript utility suggesting corrections for mistyped email addresses
Each cell counts sites that run Mailcheck, fall in that traffic tier, and carry that site category. The 7 largest categories for Mailcheck get a column; everything else is in Other.
| Traffic tier (est. monthly visits) | Business Services | Software & Technology | Real Estate & Construction | Health & Medicine | Home & Garden | Industrial & Manufacturing | Nonprofit & Community | Other categories | Tier total |
|---|---|---|---|---|---|---|---|---|---|
| 1B+ | — | — | — | — | — | — | — | — | 0 |
| 100M to 1B | — | — | — | — | — | — | — | — | 0 |
| 10M to 100M | — | 1 | — | — | — | — | — | 1 | 2 |
| 1M to 10M | 3 | 4 | — | 2 | 1 | 2 | 3 | 93 | 118 |
| 100K to 1M | 53 | 63 | 17 | 33 | 15 | 22 | 131 | 566 | 1,646 |
| 10K to 100K | 1,462 | 455 | 915 | 879 | 507 | 662 | 717 | 5,324 | 46,197 |
| Under 10K | 1,816 | 350 | 1,022 | 1,970 | 1,124 | 1,044 | 526 | 6,206 | 93,706 |
| Long tail | 44,767 | 29,815 | 23,964 | 19,877 | 14,521 | 11,693 | 10,434 | 74,163 | 1,078,920 |
| Mailcheck total | 48,101 | 30,688 | 25,918 | 22,761 | 16,168 | 13,423 | 11,811 | 86,353 | 1,220,589 |
Traffic tiers use our estimated monthly visits for August 2026. 141,669 of the 1,220,589 Mailcheck sites have an estimate. The long tail is the rest.
Site categories are ours, one per site. 255,223 Mailcheck sites carry one. Adult sites are counted under Other categories.
A free account doubles this list and turns on country and language filters. Paid plans download the whole list as a file.
