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Efa Echo alternatives & similar sites

EFA｜スポーツ健診 — 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 Heart And Cardiovascular Diseases →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
cvdlive.org ↗	62 match 1 shared topics	脳血管外科フォーラム	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
leadless-pacemaker.com ↗	62 match 1 shared topics	リードレスペースメーカドットコム｜日本メドトロニック	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
7ruhodo.com ↗	62 match 1 shared topics	コレステロールの正常値、平均値、目標値、よくわかる年齢別一覧表	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
heartnomori.com ↗	62 match 1 shared topics	ハートの守～心疾患女性の会～	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
cvit-kyushu36.org ↗	61 match 1 shared topics	第36回日本心血管インターベンション治療学会九州・沖縄地方会 \| 株式会社JTBコミュニケーションデザイン	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	email phone	none
acts.cc ↗	60 match 1 shared topics	【ACTS】札幌心・血管治療研究会	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
mdtendovascular.com ↗	60 match 1 shared topics	大動脈.com \| 患者様向けサイト \| 日本メドトロニック株式会社	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
cvs-kpum.com ↗	60 match 1 shared topics	京都府立医科大学：心臓血管外科学／外科学教室（心臓血管・小児心臓血管外科学部門）	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	partial · 8
2ndsurg.com ↗	60 match 1 shared topics	TOP - 鹿児島大学病院心臓血管外科	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
clinic-nakamura.net ↗	60 match 1 shared topics	中村内科クリニック｜京都市北区（北山･上賀茂）内科・消化器内科・循環器内科・内視鏡検査(胃カメラ)	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
cardio-port.com ↗	60 match 1 shared topics	Cardio Port 株式会社	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
cardiovasc-med-kagoshima.com ↗	60 match 1 shared topics	鹿児島大学心臓血管・高血圧内科学（鹿児島大学大学院医歯学総合研究科）	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
heartmamoru.com ↗	60 match 1 shared topics	一般社団法人全国心臓病の子どもを守る会支部会費決済サイト	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
hebphy.com ↗	60 match 1 shared topics	河北省生理科学会	ja	heart-and-cardiovascular-diseases	robotsllmsaihumans	emailphone	none
nitta-med.com ↗	60 match 1 shared topics	にった内科クリニック｜富山市の内科・循環器科｜高血圧狭心症心筋梗塞不整脈糖尿病動脈硬化 « にった内科クリニック｜富山市の内科・循環器科｜高血圧狭心症心筋梗塞不整脈糖尿病動脈硬化	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
niyama-clinic.com ↗	60 match 1 shared topics	にいやま内科循環器クリニック	ja	heart-and-cardiovascular-diseases WordPress	robotsllmsaihumans	emailphone	none
cv-port.com ↗	33 match 1 shared topics	CVポート｜明生病院CVポート造設プログラム	ja	medical-health	robotsllmsaihumans	emailphone	none
effe-cli.com ↗	30 match 1 shared topics	藤が丘エフファミリークリニック - 地下鉄藤が丘駅すぐの内科・小児科	ja	medical-health WordPress	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.