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AllOperas.com - The Opera Database — 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
clevelandoperatheater.org ↗	66 match 1 shared topics	Opera \| Cleveland Opera Theater \| United States	en	opera Wix	robots llmsaihumans	emailphone	none
operavision.eu ↗	66 match 1 shared topics	OperaVision \| Watch opera for free	European Union en	opera Drupal	robotsllmsaihumans	emailphone	none
chicagooperatheater.org ↗	65 match 1 shared topics	Chicago Opera Theater	en	opera Squarespace Magento	robotsllmsaihumans	emailphone	none
cincinnatiopera.org ↗	65 match 1 shared topics	Cincinnati Opera	en	opera Squarespace	robotsllmsaihumans	emailphone	none
lyricoperaoc.org ↗	65 match 1 shared topics	Home - Lyric Opera of Orange County	en	opera WordPress	robotsllmsaihumans	emailphone	none
carmenjakobi.com ↗	65 match 1 shared topics	Carmen Jakobi, Opera & Theatre Director	en	opera Wix	robots llmsaihumans	emailphone	none
nationaloperastudio.org.uk ↗	64 match 1 shared topics	National Opera Studio \| The Heart of Opera Training in the UK	United Kingdom en	opera WordPress	robotsllmsaihumans	emailphone	none
lyricoperaball.org ↗	64 match 1 shared topics	Lyric Opera Ball: A Modern Masquerade – Lyric Opera of Kansas City	en	opera WordPress	robotsllmsaihumans	emailphone	none
clonter.org ↗	64 match 1 shared topics	Clonter Theatre, Concerts and Opera in Cheshire	en	opera WordPress	robotsllmsaihumans	emailphone	none
24theopera.com ↗	64 match 1 shared topics	Twenty-Four: The Opera. A new 2-act opera/pastiche featuring all of the 24 Italian songs & Arias.	en	opera Wix	robots llmsaihumans	emailphone	none
romeopera-tickets.com ↗	64 match 1 shared topics	Rome Opera Tickets \| Italy opera and ballet tickets \| Rome Events Booking	en	opera	robotsllmsaihumans	email phone	none
lyricoperaproductions.com ↗	64 match 1 shared topics	Lyric Opera Productions – Ireland's Premiere Opera Company	en	opera WordPress	robotsllmsaihumans	emailphone	none
voiceafire.com ↗	64 match 1 shared topics	Home page Voice Afire Pocket Opera-Cabaret: composer Ray Luedeke, new music, contemporary music, opera production, New York City opera, music theater	en	opera	robotsllmsaihumans	emailphone	none
andrewsinclair.info ↗	64 match 1 shared topics	Andrew Sinclair \| Opera Stage Director	en	opera WordPress	robotsllmsaihumans	emailphone	none
9-11-opera.com ↗	63 match 1 shared topics	Pop Rock Symphonic Opera - Day XI	en	opera	robotsllmsaihumans	emailphone	none
themanoutside.com ↗	63 match 1 shared topics	THE MAN OUTSIDE - an opera by Brendon Cassidy	en	opera	robotsllmsaihumans	emailphone	none
americanoperasocietyofchicago.org ↗	63 match 1 shared topics	American Opera Society of Chicago	en	opera Squarespace Magento	robotsllmsaihumans	emailphone	none
ctlyricopera.org ↗	63 match 1 shared topics	Connecticut Lyric Opera – Connecticut's Premier Opera Company	en	opera 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.