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Technical Email Infrastructure for Reliable Cold Outreach — 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
simplysend.dev ↗	75 match 1 shared topics	Simply Send \| Email Infrastructure for Builders	en	email	robotsllmsaihumans	emailphone	none
packetmail.app ↗	74 match 1 shared topics	Packetmail · Email infrastructure for developers	en	email	robotsllmsaihumans	emailphone	none
bokimo.ai ↗	74 match 1 shared topics	BokimoAI \| Transactional Email Infrastructure for Teams	en	email	robotsllmsaihumans	email phone	partial · 8
outboundspace.com ↗	74 match 1 shared topics	outinfra — Cold Email Infrastructure, Automated	en	email	robotsllmsaihumans	emailphone	none
outreachinfra.com ↗	74 match 1 shared topics	outinfra — Cold Email Infrastructure, Automated	en	email	robotsllmsaihumans	emailphone	none
outinfra.com ↗	74 match 1 shared topics	outinfra — Cold Email Infrastructure, Automated	en	email	robotsllmsaihumans	emailphone	none
scaleinboxnav.com ↗	73 match 1 shared topics	InboxNavigator - Cold Email Infrastructure, Built For You	United States~ en	email	robotsllmsaihumans	emailphone	partial · 7
silvercrestvale.com ↗	73 match 1 shared topics	sending.ac \| Cold Email Infrastructure on Azure - $0.44	en	email	robotsllmsaihumans	emailphone	none
theyneedinfra.com ↗	73 match 1 shared topics	sending.ac \| Cold Email Infrastructure on Azure - $0.44	en	email	robotsllmsaihumans	emailphone	none
doyoumail.info ↗	72 match 1 shared topics	DoYouMail - Unlimited Cold Email Infrastructure for Less Than $1	en	email	robotsllmsaihumans	emailphone	none
slicey.co ↗	72 match 1 shared topics	Slicey: Cold Email Infrastructure \| High deliverability Inboxes	Colombia en	email	robotsllmsaihumans	emailphone	none
discovercoldy.com ↗	72 match 1 shared topics	Slicey: Cold Email Infrastructure \| High deliverability Inboxes	en	email	robotsllmsaihumans	emailphone	none
adsurviveinnovation.org ↗	71 match 1 shared topics	SlightEdge Inboxes - Done-For-You Cold Email Infrastructure	en	email Spree Commerce	robotsllmsaihumans	emailphone	none
adsurviveinsights.org ↗	71 match 1 shared topics	SlightEdge Inboxes - Done-For-You Cold Email Infrastructure	en	email Spree Commerce	robotsllmsaihumans	emailphone	none
adsurvivemarketing.org ↗	71 match 1 shared topics	SlightEdge Inboxes - Done-For-You Cold Email Infrastructure	en	email Spree Commerce	robotsllmsaihumans	emailphone	none
adsurvivemedia.org ↗	71 match 1 shared topics	SlightEdge Inboxes - Done-For-You Cold Email Infrastructure	en	email Spree Commerce	robotsllmsaihumans	emailphone	none
adsurvivemediahub.org ↗	71 match 1 shared topics	SlightEdge Inboxes - Done-For-You Cold Email Infrastructure	en	email Spree Commerce	robotsllmsaihumans	emailphone	none
adsurvivemediaservices.org ↗	71 match 1 shared topics	SlightEdge Inboxes - Done-For-You Cold Email Infrastructure	en	email Spree Commerce	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.