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Block Sender for Gmail — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Email →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
helpsender.com ↗	69 match 1 shared topics	Help Sender	en	email Lightspeed	robotsllmsaihumans	emailphone	none
spam-digest.com ↗	67 match 1 shared topics	Spam-Digest for Gmail - Don't miss important emails anymore	en	email WordPress	robotsllmsaihumans	emailphone	none
hellomailman.com ↗	66 match 1 shared topics	Mailman \| The best mail merge for Gmail	en	email	robotsllmsaihumans	emailphone	partial · 8
apple-cloud.click ↗	66 match 1 shared topics	iProSender	en	email	robotsllmsaihumans	emailphone	partial · 8
eightloops.com ↗	65 match 1 shared topics	Unibox for Mac and iOS – Emails Grouped by Sender	en	email	robotsllmsaihumans	emailphone	none
themailbox.app ↗	65 match 1 shared topics	Mailbox — Local SMTP Server for Developers	en	email	robotsllmsaihumans	emailphone	full · 10
volto.io ↗	65 match 1 shared topics	Volto	en	email	robotsllmsaihumans	emailphone	none
spamzapgmail.com ↗	65 match 1 shared topics	SpamZap for Gmail — Obliterate Spam. Protect Your Inbox.	en	email	robotsllmsaihumans	emailphone	partial · 8
spamblocking.com ↗	65 match 1 shared topics	Spam Blocking	en	email	robotsllmsaihumans	emailphone	none
abhixmail.store ↗	64 match 1 shared topics	Abhixmail - Free Gmail Alias Generator \| DOT & PLUS Tricks	en	email	robotsllmsaihumans	emailphone	none
speedyg.app ↗	64 match 1 shared topics	SpeedyG \| Making Gmail effortless	en	email	robotsllmsaihumans	emailphone	none
spamstop.app ↗	64 match 1 shared topics	spamstop app :: RealSender	en	email	robotsllmsaihumans	emailphone	none
spamtag.app ↗	64 match 1 shared topics	spamstop app :: RealSender	en	email	robotsllmsaihumans	emailphone	none
avocadomail.site ↗	64 match 1 shared topics	AvocadoMail — Fresh Email Forwarding	en	email	robotsllmsaihumans	emailphone	none
spamwatchers.com ↗	64 match 1 shared topics	How to Avoid Spam: Essential Tips for a Clean Inbox \| Temp-Mail.now	en	email	robotsllmsaihumans	emailphone	none
spamcalc.net ↗	64 match 1 shared topics	How to Avoid Spam: Essential Tips for a Clean Inbox \| Temp-Mail.now	en	email	robotsllmsaihumans	emailphone	none
theghlhub.com ↗	64 match 1 shared topics	From Spam to Inbox	en	email Lightspeed	robotsllmsaihumans	emailphone	none
aolmail.asia ↗	64 match 1 shared topics	AOL Mail	en	email	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.