SendGrid (Twilio)

esp 🇺🇸 US

Twilio SendGrid — transactional and marketing email API used by SaaS apps worldwide.

29,834SPF-authorising domains

4.789%of all SPF domains in Tranco top-1M

444distinct TLDs

2026-04-28snapshot date

Historical Share

com — 16,209 (54.3%)

org — 1,712 (5.7%)

com.br — 1,636 (5.5%)

co.uk — 738 (2.5%)

net — 707 (2.4%)

nl — 556 (1.9%)

io — 529 (1.8%)

com.au — 482 (1.6%)

de — 385 (1.3%)

ca — 320 (1.1%)

fr — 303 (1.0%)

edu — 280 (0.9%)

co — 277 (0.9%)

se — 250 (0.8%)

fi — 214 (0.7%)

it — 214 (0.7%)

be — 195 (0.7%)

jp — 192 (0.6%)

ai — 190 (0.6%)

dk — 172 (0.6%)

no — 161 (0.5%)

eu — 128 (0.4%)

es — 121 (0.4%)

pl — 111 (0.4%)

cl — 102 (0.3%)

org.uk — 101 (0.3%)

ro — 100 (0.3%)

ch — 99 (0.3%)

hu — 99 (0.3%)

co.jp — 93 (0.3%)

Showing 100 of 29,834 domains. Sample sorted by length (shortest first).