Mailgun vs SparkPost

Head-to-head usage across the sites we track.

355,006
websites
vs
25,172
websites

Top sites by authority

Mailgun · SparkPost · how many of each technology's sites sit in the web's highest authority tiers

Open Page Rank 9+ 32 6
Open Page Rank 8+ 597 95
Open Page Rank 7+ 2,382 348
Open Page Rank 6+ 5,006 668
Open Page Rank 5+ 9,283 1,222

Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.

By country

Mailgun · SparkPost · share of sites in each country using one or the other

United States 79,971 5,570
United Kingdom 32,456 2,638
Canada 25,014 1,989
India 24,437 1,890
Germany 18,963 1,833
Australia 18,461 1,253
France 17,380 1,573
Netherlands 16,595 1,638

Audience countries from the Chrome UX Report, top markets of either technology.

Real user performance

Metric Mailgun SparkPost
LCP 1.8 s 1.7 s
INP 75 ms 75 ms
CLS 0 0
TTFB 700 ms 700 ms

Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.

Sites that switched

Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.

Mailgun to SparkPost

DomainWhen
parentdata.orgDec 2025

SparkPost to Mailgun

DomainWhen
tagtool.orgMay 2026
valdezcityschools.orgMay 2026
optk.comApr 2026
tocico.orgJan 2026
sciencellonline.comJan 2026
hils.roNov 2025
therpa.co.ukNov 2025

All Mailgun sites · All SparkPost sites

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