What ChatGPT, Claude, Gemini and Perplexity cite for email marketing tools
October 2026: we asked 5 buyer questions 3 times on each engine and collected 60 answers with 414 cited sources. The share is how many answers cited a site at least once; the range shows how much it could move from run to run.
Most cited sites
| # | Site | Kind | Share of answers |
|---|---|---|---|
| 1 | emailvendorselection.com | Other sites | 55% (43%–67%) |
| 2 | brevo.com | Brands' own sites | 40% (29%–53%) |
| 3 | zapier.com | Reviews and best-of lists | 35% (24%–48%) |
| 4 | sequenzy.com | Other sites | 32% (21%–44%) |
| 5 | constantcontact.com | Brands' own sites | 30% (20%–43%) |
| 6 | mailercloud.com | Other sites | 30% (20%–43%) |
| 7 | emailtooltester.com | Other sites | 28% (19%–41%) |
| 8 | ventureharbour.com | Other sites | 28% (19%–41%) |
| 9 | forbes.com | Reviews and best-of lists | 27% (17%–39%) |
| 10 | hostinger.com | Other sites | 20% (12%–32%) |
| 11 | mailtrap.io | Other sites | 20% (12%–32%) |
| 12 | zdnet.com | News and magazines | 20% (12%–32%) |
| 13 | thecmo.com | Other sites | 17% (9%–28%) |
| 14 | blog.hubspot.com | Other sites | 15% (8%–26%) |
| 15 | getresponse.com | Other sites | 15% (8%–26%) |
Where the citations come from
- Other sites70%
- Reviews and best-of lists14%
- Brands' own sites14%
- News and magazines3%
Brands named
Share of answers naming each brand. Brands outside our list are not counted here.
- Brevo83%
- MailerLite82%
- Klaviyo77%
- Mailchimp67%
- ActiveCampaign62%
- Kit60%
- Constant Contact40%
- beehiiv17%
- Substack7%
Each engine reads different sites
ChatGPT
15 answers
- technologyadvice.com20%
- getomnichannel.com13%
- choosemystack.com7%
- comparebiztech.com7%
- dupple.com7%
Claude
15 answers
- sequenzy.com93%
- mailercloud.com73%
- guideflow.com60%
- mailtrap.io60%
- ventureharbour.com60%
Gemini
15 answers
- emailvendorselection.com93%
- constantcontact.com80%
- ventureharbour.com53%
- emailtooltester.com47%
- saascompared.io47%
Perplexity
15 answers
- brevo.com80%
- emailvendorselection.com80%
- hostinger.com80%
- zdnet.com80%
- blog.hubspot.com60%
What to do with this
- Be on the sites the engines read: zapier.com, forbes.com, learn.g2.com. Claim your profile, ask happy customers for reviews, and answer real questions where you can help. Never buy reviews or votes.
- Publish the pages these answers quote: a clear comparison page, pricing, and who you are for.
- Make sure the crawlers behind these engines can reach your site at all.
Questions asked
- What is the best email marketing tool in 2026?
- What email marketing tool would you recommend for small businesses?
- What tool should I use to send newsletters and automated emails?
- What are the top email marketing tool options and how do they compare?
- Is there a free or cheap email marketing tool that is good enough?
Answers come from each engine's official API with web search on, one plain question per call. AI answers vary run to run, so treat small differences as noise. Data: JSON (CC BY 4.0, credit GetPicked). Full method