Brandwave

Email deliverability testing tools:Which brands are most popular in search?

In August 2026, Mail-Tester was the most searched among email deliverability testing tools worldwide, with an estimated 54.8K branded searches and 52.4% estimated Share of Search within this set. Worldwide · English terms: these are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. Mail-Tester52.4%
  2. Mailtrap40.8%
  3. GlockApps5.2%
  4. InboxAlly1%
  5. MailMonitor0.7%

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Share of SearchLeaderboard

Compare services and tools used to test email sending and delivery. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

Share of Search among email deliverability testing tools worldwide, by month

Share of Search by month for Mail-Tester, Mailtrap, GlockApps. The figures are in the table below the chart.

View monthly share of search table
MonthMail-TesterMailtrapGlockAppsInboxAllyMailMonitor
Oct 202546.8%46.8%5%0.82%0.67%
Nov 202551.2%41.9%5.4%0.72%0.72%
Dec 202547.1%46.3%4.9%0.98%0.8%
Jan 202652%42.1%4.4%0.79%0.72%
Feb 202652%42%4.4%0.85%0.72%
Mar 202652.1%42.2%4.4%0.62%0.6%
Apr 202647.3%46.5%4.9%0.8%0.54%
May 202651.6%42.5%4.4%0.73%0.73%
Jun 202651.7%41.7%5.3%0.72%0.59%
Jul 202652.6%40.9%5.2%0.74%0.47%
Aug 202652.4%40.8%5.2%1%0.7%
Sep 2026—————

This month’s ranking, August 2026

  1. 1.Mail-Tester

    52.4%

    held 1st · 54.8K estimated branded searches · -17.6% vs prior month · -0.3 points

  2. 2.Mailtrap

    40.8%

    held 2nd · 42.7K estimated branded searches · -17.5% vs prior month · -0.2 points

  3. 3.GlockApps

    5.2%

    held 3rd · 5.4K estimated branded searches · -18.1% vs prior month · -0.1 points

  4. 4.InboxAlly

    1%

    held 4th · 1.1K estimated branded searches · +12.9% vs prior month · +0.3 points

  5. 5.MailMonitor

    0.7%

    held 5th · 730 estimated branded searches · +21.7% vs prior month · +0.2 points

Compare search popularity between leading brands

Which brand is most popular in search among email deliverability testing tools worldwide?

In August 2026, Mail-Tester was the most searched among email deliverability testing tools worldwide, with an estimated 54.8K branded searches and 52.4% estimated Share of Search within this set. Mailtrap is in 2nd place, 11.6 percentage points behind at 40.8% Share of Search.

Global email deliverability testing tools, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Mail-Tester46.8% → 52.4%52.6%Jul 202646.8%Oct 20251st
Mailtrap46.8% → 40.8%46.8%Oct 202540.8%Aug 20262nd
GlockApps5% → 5.2%5.4%Nov 20254.4%Jan 20263rd
InboxAlly0.82% → 1%1%Aug 20260.62%Mar 20264th
MailMonitor0.67% → 0.7%0.8%Dec 20250.47%Jul 20265th

Each finding as a sentence

  • Across the 11 months ending August 2026, Mail-Tester’s estimated Share of Search among email deliverability testing tools worldwide increased from 46.8% to 52.4%.
  • Across the 11 months ending August 2026, Mailtrap’s estimated Share of Search among email deliverability testing tools worldwide decreased from 46.8% to 40.8%.
  • Across the 11 months ending August 2026, Mail-Tester’s estimated Share of Search among email deliverability testing tools worldwide peaked at 52.6% in July 2026 and was lowest at 46.8% in October 2025.
  • Across the 11 months ending August 2026, GlockApps, InboxAlly and MailMonitor held steady: their estimated Share of Search among email deliverability testing tools worldwide each moved less than 0.5 percentage points.

How did search popularity change for email deliverability testing tools worldwide in August 2026?

  1. Mailtrap’s estimated Share of Search among email deliverability testing tools worldwide has lost ground for 3 months in a row, from 42.5% to 40.8% in August 2026.

  2. Estimated monthly branded searches for GlockApps worldwide fell 18.1% over 11 measured months, from 6.6K to 5.4K in August 2026.

  3. Estimated monthly branded searches for MailMonitor worldwide fell 18% over 11 measured months, from 890 to 730 in August 2026.

  4. Estimated monthly branded searches for Mail-Tester worldwide fell 12.2% over 11 measured months, from 62.4K to 54.8K in August 2026.

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