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Acte4 alternatives & similar sites

Acte 4 — 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 Opera →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
silence-agency.com ↗	63 match 1 shared topics	- Silence Agency	fr	opera WordPress	robotsllmsaihumans	emailphone	none
contoperaprod.com ↗	62 match 1 shared topics	Productions Cont'opéra \| opéra \| Québec, QC, Canada	fr	opera Wix	robots llmsaihumans	emailphone	none
paris-opera-nft.com ↗	62 match 1 shared topics	Opéra national de Paris	fr	opera	robotsllmsaihumans	emailphone	none
lagaleriedeloperadeparis.com ↗	62 match 1 shared topics	Opéra national de Paris	fr	opera	robotsllmsaihumans	emailphone	none
pop-opera.com ↗	62 match 1 shared topics	Opéra national de Paris	fr	opera	robotsllmsaihumans	emailphone	none
lafabriqueopera-seinesaintdenis.com ↗	61 match 1 shared topics	La Fabrique Opéra Seine-Saint-Denis — Un opéra fabriqué ensemble	fr	opera	robotsllmsaihumans	emailphone	partial · 8
beatrice-uriamonzon.com ↗	61 match 1 shared topics	Béatrice Uria Monzon \| Visitez son site officiel	fr	opera WordPress WooCommerce	robotsllmsaihumans	emailphone	none
morganeheyse.com ↗	61 match 1 shared topics	Morgane Heyse - Soprano Colorature	fr	opera	robotsllmsaihumans	emailphone	none
lafabrikcotedazur.org ↗	61 match 1 shared topics	Accueil - Lafabrikcotedazur	fr	opera Weebly	robots llmsaihumans	emailphone	none
albert-willemetz.com ↗	61 match 1 shared topics	Fonds Albert Willemetz	fr	opera	robotsllmsaihumans	emailphone	none
albert-willemetz.net ↗	61 match 1 shared topics	Fonds Albert Willemetz	fr	opera	robotsllmsaihumans	emailphone	none
albert-willemetz.org ↗	61 match 1 shared topics	Fonds Albert Willemetz	fr	opera	robotsllmsaihumans	emailphone	none
lafabriqueopera-isere.com ↗	60 match 1 shared topics	Accueil - La Fabrique Opéra Isère	fr	opera WordPress WooCommerce	robotsllmsaihumans	emailphone	none
albertwillemetz.com ↗	60 match 1 shared topics	FONDATION ALBERT WILLEMETZ	fr	opera	robotsllmsaihumans	emailphone	none
kristineopolais.com ↗	60 match 1 shared topics	Kristine Opolais - Soprano	fr	opera WordPress WooCommerce	robotsllmsaihumans	emailphone	none
voixdesplumes.com ↗	31 match 1 shared topics	Les Nuits Blanches - Dostoïevski - Avignon - La Voix des Plumes/R.Rivière	fr	opera Wix	robots llmsaihumans	emailphone	none
pagesy.net ↗	31 match 1 shared topics	Le site de Jean-Loup Pagesy _ Basse à l'Opéra	fr	opera	robotsllmsaihumans	emailphone	none
latroupempcd.com ↗	31 match 1 shared topics	La Troupe mpcd - page Accueil	fr	opera	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.