{"meta":{"dataMonth":"2026-09","source":{"traffic":"traffic.cv panel estimates, month 2026-09, 12-month history","companies":"yc-oss API mirror of the public YC directory, fetched 2026-10-22","press_and_founders":"YC public company pages via YC Mode, crawled 2026-07","brand_search":"DawnTrend brand-search collection (Google monthly search volume for the company name, bucketed), Sep 2025 to Aug 2026, collected 2026-09-30","logos":"YC public company logos"},"method":"attention minutes = monthly visits x average visit seconds / 60. mindshare = a company's attention minutes / sum over the index. change3 = visits in 2026-09 vs 2026-06. Visits are rounded to 3 significant figures."},"company":{"visitsAligned":4.7,"slug":"castle-2","name":"Castle","domain":"castle.io","batch":"Winter 2016","year":2016,"status":"Active","industry":"B2B","category":"Security","tags":["Developer Tools","SaaS","Security","Fraud Detection"],"stage":"Growth","teamSize":20,"isHiring":true,"location":"San Francisco, CA, USA","oneLiner":"Block bots & bad behavior","ycUrl":"https://www.ycombinator.com/companies/castle-2","logo":"/logos/castle-2.png","visits":47800,"last3":[55700,57600,47800],"jun":51800,"change3":null,"changeMonth":null,"avgVisitSec":15,"bounce":37.6,"pagesPerVisit":1.65,"globalRank":737397,"attentionMin":11900,"history":[{"m":"2025-10","v":52500},{"m":"2025-11","v":43600},{"m":"2025-12","v":61500},{"m":"2026-01","v":75000},{"m":"2026-02","v":48700},{"m":"2026-03","v":51200},{"m":"2026-04","v":52800},{"m":"2026-05","v":47600},{"m":"2026-06","v":51800},{"m":"2026-07","v":55700},{"m":"2026-08","v":57600},{"m":"2026-09","v":47800}],"keywords":[{"name":"castle login","volume":4610,"cpc":0},{"name":"castle website login","volume":1750,"cpc":0},{"name":"castle desktop login","volume":520,"cpc":0},{"name":"castle","volume":254840,"cpc":0.32},{"name":"castle website login and password","volume":310,"cpc":0}],"founders":[{"name":"Johan Brissmyr","title":"Founder/CEO","linkedin":"https://www.linkedin.com/in/brissmyr"},{"name":"Sebastian Wallin","title":"Founder/CTO","linkedin":"http://se.linkedin.com/in/sebwal/"}],"news":[],"rank":1526,"mindshare":0.000037,"industryRank":806,"industryRankOf":1206,"categoryRank":25,"categoryRankOf":49,"batchRank":37,"batchRankOf":41,"percentile":33,"industryMedianVisitSec":68,"cautions":[{"k":"small","t":"Small sample","d":"Under 50,000 visits a month: panel estimates are noisy at this size."}],"brandedShare":100,"lens":["Ranks #806 of 1206 in B2B, ahead of 33% of its peers.","Visits are short: 0:15 against a B2B median of 1:08. Fast tasks, or visitors leaving early.","Too small or too new for a reliable 3 month trend (needs 50K visits in both June and September).","Holds 0.000037% of all attention minutes in the index.","About 100% of its tracked search volume is its own name: it depends on people who already know it."],"search":null,"peers":["dropbox","substack","prolific","meesho","supabase"],"industrySeries":[100,95.3,98.1,108.3,101.4,114.7,113.3,114.4,112.2,115.9,116.9,118.3]}}