Question 1

Which email marketing tools are the most visible to AI search engines?

Accepted Answer

In our October 18, 2026 crawl, the top-scoring email marketing tools were MailerLite (100/100), beehiiv (98/100), Buttondown (98/100). The score measures how easily ChatGPT, Perplexity, Claude and AI agents can crawl, understand and use each product's homepage.

Question 2

How do email marketing tools compare with the rest of the AI Visibility Index?

Accepted Answer

The 21 email marketing tools we track average 92/100, 6 points above the 86/100 average across all 538 SaaS and AI sites in the index.

Question 3

What is the most common AI visibility gap among email marketing tools?

Accepted Answer

62% of the email marketing tools we checked miss "Question & answer content" (vs 71% across the whole index). Fix: Add an FAQ answering the exact questions buyers ask ChatGPT ("best X for Y", "X vs Y", "how much does X cost").

Question 4

How is the AI visibility score calculated?

Accepted Answer

RankRoot checks four areas on each homepage: AI crawler access (robots.txt rules for GPTBot, ClaudeBot, PerplexityBot and others), answer-engine content (title, headings, FAQ-style content, server-rendered text), structured data (JSON-LD, Organization/Product schema) and agent readiness (llms.txt, discoverable API or MCP server). Each area is scored 0 to 100 and combined into one score.

Question 5

When was this data collected, and can a company update its score?

Accepted Answer

Scores are a snapshot from our crawler on October 18, 2026. They are not updated automatically. Anyone can rescan a site live for free, and we refresh the index periodically.

Question 6

My email marketing tool isn't listed. How do I see where it would rank?

Accepted Answer

Run a free scan at https://getrankroot.com/report. You get the same score and checks, so you can compare it directly with this leaderboard.

#	Product	Score	Crawlers	Content	Schema	Agents
1	MailerLite mailerlite.com	100	100	100	100	100
2	beehiiv beehiiv.com	98	95	100	100	100
2	Buttondown buttondown.com	98	100	94	100	100
2	Customer.io customer.io	98	100	94	100	100
2	GlockApps glockapps.com	98	100	93	100	100
2	Mailchimp mailchimp.com	98	100	94	100	100
7	Loops loops.so	97	100	89	100	100
7	Omnisend omnisend.com	97	95	94	100	100
7	Userlist userlist.com	97	95	94	100	100
10	Flodesk flodesk.com	96	89	100	100	100
11	Moosend moosend.com	95	94	89	100	100
12	Klaviyo klaviyo.com	94	100	93	100	83
13	AWeber aweber.com	93	95	94	100	83
13	GetResponse getresponse.com	93	95	94	100	83
13	Sender sender.net	93	95	94	100	83
16	Brevo brevo.com	92	95	91	100	83
16	MailReach mailreach.co	92	95	91	100	83
18	ActiveCampaign activecampaign.com	84	100	87	100	47
18	EmailOctopus emailoctopus.com	84	100	87	100	47
20	Ghost ghost.org	82	100	94	67	47
21	Substack substack.com	53	100	38	8	26

Area	This industry	All 538 sites
Overall score	92	86
AI crawler access	97	97
Answer-engine content	91	89
Structured data	94	71
Agent readiness	84	76

Most AI-visible email marketing tools (2026)

Email marketing tools vs the whole index

Most common gaps among email marketing tools

FAQ