{"page":"/tools/rtb-latency-calculator","modified":"2026-11-10","license":"https://creativecommons.org/licenses/by/4.0/","columns":["Component","Rule or default","Source"],"rows":[["Prebid.js auction timeout","Docs example 3,000 ms; FAQ starting point 1,000 ms or less","setConfig; FAQ"],["Prebid.js failsafe timeout","3,000 ms or less, set outside Prebid","FAQ"],["s2sConfig.timeout","Default min(75% of auction timeout, 750 ms); timeouts page suggests 50% to 75%","s2sConfig; timeouts"],["Prebid Server Go","bidder_tmax = tmax − processing − network buffer − minimum response time; bidder skipped below the response preparation time","auction endpoint"],["Prebid Server Java","bidder_tmax = max(min(tmax, max) × percent − processing − upstream time − deduction, min); default max 5,000 ms, min 50 ms, at least 150 ms recommended","auction endpoint"],["Google Authorized Buyers","80 to 1,000 ms by format and auction type; 85% inside; at most 2% late per location","peering guide; test guide"],["Index Exchange","tmax required; latency to the DSP not subtracted unless agreed","Index Exchange KB, 7 Oct 2026"],["Microsoft Monetize (formerly Xandr)","Outgoing example requests show tmax of 150, 2,000 and 100 ms; incoming tmax from SSPs not supported","outgoing request docs; incoming request docs (both 29 Jul 2026)"],["Unity (ironSource Ads exchange)","tmax required; example requests show 996 and 998 ms","OpenRTB specs, updated 20 Aug 2026"]],"sourceUrls":[["https://docs.prebid.org/dev-docs/publisher-api-reference/setConfig.html","https://docs.prebid.org/dev-docs/faq.html"],["https://docs.prebid.org/dev-docs/faq.html"],["https://docs.prebid.org/dev-docs/modules/prebidServer.html","https://docs.prebid.org/features/timeouts.html"],["https://docs.prebid.org/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html"],["https://docs.prebid.org/prebid-server/endpoints/openrtb2/pbs-endpoint-auction.html"],["https://developers.google.com/authorized-buyers/rtb/peer-guide","https://developers.google.com/authorized-buyers/rtb/test-guide"],["https://kb.indexexchange.com/dsps/open-rtb/list_of_supported_openrtb_bid_request_fields_dsp.htm"],["https://learn.microsoft.com/en-us/xandr/bidders/outgoing-bid-request-to-bidders","https://learn.microsoft.com/en-us/xandr/supply-partners/incoming-bid-request-from-ssps"],["https://docs.unity.com/en-us/grow/programmatic/ironsource-exchange/openrtb-specs"]]}