vertical search engines and directories
Recent window: last 5.4 months
(2026-05-01 → 2026-10-11), compared with the prior
5.4 months.
horizontal · 61 members ·
Data as of 2026-10-14
Vertical search engines and directories index, filter, and organize specialized datasets into dedicated discovery platforms for researchers, professionals, and hobbyists. Unlike general-purpose search engines that scrape the broad web, these tools focus exclusively on single domains like government records, technical documentation, or travel logistics. This targeted approach provides users with structured filters and domain-specific context that broad query engines cannot match.
This theme's recent-window count is below the current min-count filter, so it does not appear in the opportunity scorecard.
Pulled from real Hacker News comment threads on this niche's launches.
Most asked for
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Account for event schedules and temporal noise patterns (1)
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Add ASN data to NS and MX records (currently only on A/AAAA records) (1)
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Add cobalt bang to global list for non-Kagi users (1)
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Add pricing information or average price ranges for courses (1)
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Aggregate stats summary at the top of the page (1)
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AI agent-friendly response format (1)
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Author reputation and career-wide bias analysis across bibliography (1)
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Better hover interaction for zoomed-out view (cursor feedback, easier point selection) (1)
Concerns raised
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100 searches per month for $16 is low value (1)
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Author/institutional bias and reputation masking not detectable by algorithms (1)
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Batch processor slow at 30k documents/day with BERT embeddings (1)
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Confusing whether this searches repos or sites (1)
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Crawler bugs limiting speed to 1-2M pages/day instead of expected 30M (1)
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Cross-language pattern search is unreliable and not yet feasible (1)
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Currency conversion bug - returns USD prices when user specified UK (1)
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Currently just a DNS lookup tool, not a complete wire/infrastructure graph yet (1)
Compared to
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Brave Search (2)
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Google (2)
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Kagi (2)
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Marginalia Search (2)
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allzonefiles.io (zone file data provider) (1)
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ChatGPT 5.2 Extended (1)
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Cochrane reviews (1)
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Cohere embeddings (1)