Email deliverability and testing tools · RankedEmail on Acid
Email on Acid is an email testing tool used to check how emails look before they are sent · emailonacid.com ↗
Why models recommend it
“Secondary Recommendation: Email on Acid Best for email rendering and cross-client compatibility”GLM 4.7 FlashX · Paraphrase question · alternative
“Similar to Litmus, offering pre-send testing for rendering, spam scores, and link checking.”Mistral Small · Comparative question · alternative
“similar category to Litmus; typically used for client previews, QA, and pre-send checks”GPT-5.4 mini · Comparative question · alternative
“Offers unlimited preview testing on all plans, making it more cost-effective for agencies”Gemini 3.5 Flash · Comparative question · alternative
What gives them pause
“Caveat: These are primarily design/rendering testing tools. Their inbox placement features are secondary.”Kimi K2 · Paraphrase question · warning
Also on the shortlist
The products named in the same answers as Email on Acid, over the 37 answers that named it, and how often each was the first choice instead.
| Product | Named together | Picked instead | |
|---|---|---|---|
| 35 | 19 | View → | |
| 35 | 5 | View → | |
| 21 | 1 | View → | |
| 19 | 9 | View → | |
| 19 | 2 | View → | |
| 19 | 1 | View → | |
| 16 | 0 | View → | |
| 15 | 1 | View → | |
| 13 | 0 | View → | |
| 13 | 0 | View → |
What the models named instead of Email on Acid →
A side-by-side page exists where both products are among a category's top eight.
How this is measured
Fourteen AI models from 12 labs are asked the same buying questions six ways, for three company sizes. Standings refresh every edition.
Gane sells AI visibility software. No company can pay to change a result.
Read the method →Sources returned with these answers
Fourteen of the fourteen models returned a source list in this edition: five return the pages they cited and nine the search results they consulted. These counts come from 31 of the 37 answers that named Email on Acid and are not a share of its labels.
Domains cited
103 of the 103 domain citations in answers naming Email on Acid came from a third party's page.
Pages cited
Pages are listed as the models cited them.
By model
| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 1 | 1 | 0 | 2 |
| Gemini 3.5 Flash | 0 | 2 | 0 | 0 | 2 |
| Perplexity Sonar | 0 | 1 | 0 | 0 | 1 |
| Grok 4.20 | 0 | 0 | 1 | 0 | 1 |
| Mistral Small | 0 | 1 | 0 | 0 | 1 |
| DeepSeek V4 Flash | 0 | 1 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 1 | 1 |
| GLM 4.7 FlashX | 0 | 1 | 1 | 0 | 2 |
| MiniMax M2.5 | 0 | 1 | 0 | 0 | 1 |
| GPT-6 Luna | 0 | 1 | 0 | 0 | 1 |
| Muse Glimmer 30B | 0 | 0 | 1 | 0 | 1 |
What it publishes
| Kind | Pages | Last 90 days | 2025-11 to 2026-10 | Latest | Categories named |
|---|---|---|---|---|---|
| Blog | 532 | 0 | 2026-05-26 | Mobile apps, SEO | |
| Glossary or explainer | 53 | 0 | 2024-08-01 | CRM, CDP | |
| Comparison | 11 | 0 | 2023-07-27 | ||
| Webinar or virtual event | 10 | 0 | 2021-01-13 | ||
| Case study | 5 | undated | |||
| Template or tool | 5 | 0 | 2023-07-17 | ||
| Report or ebook | 1 | undated | |||
| Podcast or video | 1 | 0 | 2024-07-23 | ||
| News or press | 1 | 0 | 2019-10-02 |
Most recent
- 2026-05-26Email authentication protocols blog
- 2026-03-12History of email blog
- 2026-03-12History of email blog
- 2026-02-25Email rendering deliverability blog
- 2026-02-17A practical guide to using emojis in email blog
- 2026-02-05Valentines subject lines blog
How it is countedHide how it is counted
Every page emailonacid.com exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read October 5, 2026.