How popular isLitmus?
In September 2026, people searched for Litmus by name about 590 times worldwide, a 33% decrease from the previous year. These searches made up 0.14% of all global email deliverability testing tool searches, placing Litmus seventh out of eight tools. When we asked both ChatGPT and Google AI Overviews about email deliverability testing tools, Litmus appeared in two of the five answers and was the fifth most recommended of the eight.
Litmus is the seventh most searched of 8 competitors and the fifth most recommended in AI answers.
MXToolboxShare of searches 70%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
Mail-TesterShare of searches 16.9%Mentioned in 4 of 5 AI answersPlace in AI recommendations 2nd
MailtrapShare of searches 9.8%Mentioned in 2 of 5 AI answersPlace in AI recommendations 6th
GlockAppsShare of searches 1.5%Mentioned in 4 of 5 AI answersPlace in AI recommendations 1st
LitmusShare of searches 0.14%Mentioned in 2 of 5 AI answersPlace in AI recommendations 5th
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Top email deliverability testing tools in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Litmus was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Litmus is the fifth most recommended of the eight.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
- GlockApps1st
- Mail-Tester2nd
MailReach3rd- MXToolbox4th
- Litmus5th
- Mailtrap6th
InboxAlly–
MailMonitor–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Mail-Tester4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- GlockApps4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- MailReach3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- MXToolbox2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Mailtrap2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Litmus2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- InboxAlly0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- MailMonitor0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about email deliverability testing tools
5 answers
Asked ChatGPT
“Which email deliverability testing tool should I use?”
Asked ChatGPT
“What are the best email deliverability testing tools?”
Asked ChatGPT
“What's the best email deliverability testing tool for better inbox placement?”
Searched Google, AI Overview
“email deliverability tool”
Searched Google, AI Overview
“email spam test”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Which email deliverability testing tools compete with Litmus?
Share of searches by month for MXToolbox, Mail-Tester, Mailtrap, Litmus. The figures are in the table below the chart.
View monthly share of searches table
| Month | MXToolbox | Mail-Tester | Mailtrap | GlockApps | MailReach | InboxAlly | Litmus | MailMonitor |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 66.5% | 16.6% | 13.8% | 1.5% | 0.97% | 0.24% | 0.19% | 0.19% |
| Nov 2025 | 68.6% | 16.6% | 11.7% | 1.5% | 1% | 0.2% | 0.2% | 0.2% |
| Dec 2025 | 66.2% | 16.6% | 13.9% | 1.5% | 1.2% | 0.29% | 0.19% | 0.24% |
| Jan 2026 | 68.3% | 17.1% | 11.8% | 1.2% | 1% | 0.22% | 0.16% | 0.2% |
| Feb 2026 | 68.2% | 17.1% | 11.7% | 1.2% | 1.2% | 0.24% | 0.16% | 0.2% |
| Mar 2026 | 68.8% | 16.6% | 11.8% | 1.2% | 1% | 0.17% | 0.16% | 0.16% |
| Apr 2026 | 70.5% | 14.4% | 12.1% | 1.3% | 1.3% | 0.21% | 0.17% | 0.14% |
| May 2026 | 68.5% | 16.6% | 11.8% | 1.2% | 1.2% | 0.2% | 0.16% | 0.2% |
| Jun 2026 | 68.3% | 16.7% | 11.7% | 1.5% | 1.2% | 0.2% | 0.16% | 0.16% |
| Jul 2026 | 68.1% | 17% | 11.7% | 1.5% | 1.2% | 0.21% | 0.13% | 0.13% |
| Aug 2026 | 67.1% | 17.6% | 11.6% | 1.5% | 1.5% | 0.29% | 0.2% | 0.2% |
| Sep 2026 | 70% | 16.9% | 9.8% | 1.5% | 1.3% | 0.24% | 0.14% | 0.14% |
| Rank | Brand | Share of searches | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 70% | 301K | +22.4% | +2.8 points | |
| 2, held 2nd | 16.9% | 72.7K | +12.6% | -0.7 points | |
| 3, held 3rd | 9.8% | 42.3K | -0.84% | -1.8 points | |
| 4, held 4th | 1.5% | 6.6K | +22.2% | +0.1 points | |
| 5, held 5th | 1.3% | 5.4K | 0% | -0.2 points | |
| 6, held 6th | 0.24% | 1.1K | 0% | 0 points | |
| 7, held 7th | 0.14% | 590 | -18.1% | -0.1 points | |
| 8, held 8th | 0.14% | 590 | -18.1% | -0.1 points |
70%
Held 1st. 301K estimated branded searches, +22.4% vs prior month. Share +2.8 points.
16.9%
Held 2nd. 72.7K estimated branded searches, +12.6% vs prior month. Share -0.7 points.
3.
Mailtrap9.8%
Held 3rd. 42.3K estimated branded searches, -0.84% vs prior month. Share -1.8 points.
1.5%
Held 4th. 6.6K estimated branded searches, +22.2% vs prior month. Share +0.1 points.
1.3%
Held 5th. 5.4K estimated branded searches, 0% vs prior month. Share -0.2 points.
0.24%
Held 6th. 1.1K estimated branded searches, 0% vs prior month. Share 0 points.
7.
Litmus0.14%
Held 7th. 590 estimated branded searches, -18.1% vs prior month. Share -0.1 points.
0.14%
Held 8th. 590 estimated branded searches, -18.1% vs prior month. Share -0.1 points.
Compare popularity between Litmus and its closest rivals
Every comparison with Litmus
7 comparisons
How has branded search demand for Litmus changed worldwide over the last 12 months?
2 findings
- Across the 12 months ending September 2026, estimated monthly branded searches for Litmus worldwide fell from 880 to 590.
- Across the 12 months ending September 2026, Litmus’ share of searches among email deliverability testing tools worldwide held steady, from 0.19% to 0.14%.
How did search popularity change for email deliverability testing tools worldwide in September 2026?
6 changes
In September 2026, MXToolbox gained share of searches among email deliverability testing tools worldwide, from 67.1% to 70%.
In September 2026, Mailtrap lost share of searches among email deliverability testing tools worldwide, from 11.6% to 9.8%.
In September 2026, Mail-Tester lost share of searches among email deliverability testing tools worldwide, from 17.6% to 16.9%.
Estimated monthly branded searches for MailReach worldwide rose 22.7% over 12 measured months, from 4.4K to 5.4K in September 2026.
Estimated monthly branded searches for Litmus worldwide fell 33% over 12 measured months, from 880 to 590 in September 2026.
Estimated monthly branded searches for MailMonitor worldwide fell 33% over 12 measured months, from 880 to 590 in September 2026.
How are Litmus’ branded searches counted?
1 search term
Brandwave collects information about searches that people make online using Litmus’ name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.
- litmus email
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