出で会あい系けいサイト

で

あ

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け

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サ

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Meanings

1

noun

online dating website

Refers to websites designed for meeting romantic or sexual partners online. Often associated with 出会い系 (dating services).

exit, leave, go out

会meeting, meet, party

系lineage, system

出で会あい系けい
出会い系 is a broader term for dating services or platforms, while 出会い系サイト specifically refers to websites.
マッチングアプリ
マッチングアプリ is a more modern term for dating apps, whereas 出会い系サイト often implies older-style dating websites.

Compound of 出会い (deai, 'encounter') + 系 (kei, 'type') + サイト (saito, 'website').