Y Combinator Startups

Startups funded by Y Combinator that have been publicly announced and still have functional websites.

169 of 5,116 sites · synced from the official YC API · rank is the average of Tranco, Majestic and Umbrella; Radar and CrUX shown for context · all 5 are flawed, that's the point. · tap a row for the breakdown

Notes:all

’05–’09S05 · W06 · S06 · W07 · S07 · W08 · S08 · W09 · S09

’10–’14W10 · S10 · W11 · S11 · W12 · S12 · W13 · S13 · W14 · S14

’15–’19W15 · S15 · W16 · S16 · W17 · S17 · W18 · S18 · W19 · S19

’20–’24W20 · S20 · W21 · S21 · W22 · S22 · W23 · S23 · W24 · S24 · F24

’25–’27W25 · S25 · F25 · W26 · S26 · F26 · W27

P25 · P26

W20 · 169 sites · ← all sites

169 sites, including 19 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

posthog.com5,095 avg · W20▲ 615,0952,183top 1ktop 500k9,4843,619Sep 14

Tranco 2,183Radar top 1kCrUX top 500kMajestic 9,484Umbrella 3,619checked Sep 14

whatnot.com20,520 avg · W20▼ 2,21020,5206,559top 5ktop 50k30,88724,115Sep 14

Tranco 6,559Radar top 5kCrUX top 50kMajestic 30,887Umbrella 24,115checked Sep 14

raycast.com38,779 avg · W20▼ 28938,77918,110top 10ktop 500k20,69877,530Sep 14

Tranco 18,110Radar top 10kCrUX top 500kMajestic 20,698Umbrella 77,530checked Sep 14

facio.com.br93,711 avg · W20▼ 3,58093,71120,886top 50ktop 10k—166,536Sep 14

Tranco 20,886Radar top 50kCrUX top 10kMajestic —Umbrella 166,536checked Sep 14

taiv.tv94,879 avg · W20▲ 5,59594,87994,879top 50k———Sep 14

Tranco 94,879Radar top 50kCrUX —Majestic —Umbrella —checked Sep 14

usemotion.com125,067 avg · W20▲ 774125,06743,625top 50ktop 1M27,091304,484Sep 14

Tranco 43,625Radar top 50kCrUX top 1MMajestic 27,091Umbrella 304,484checked Sep 14

edurev.in163,117 avg · W20▲ 13,904163,11750,477top 100ktop 50k107,718331,155Sep 14

Tranco 50,477Radar top 100kCrUX top 50kMajestic 107,718Umbrella 331,155checked Sep 14

fly.io186,659 avg · W20▼ 51,016186,65928,074top 20ktop 500k16,275515,627Sep 14

Tranco 28,074Radar top 20kCrUX top 500kMajestic 16,275Umbrella 515,627checked Sep 14

humanly.io192,135 avg · W20▲ 45,633192,135130,104top 100k—277,648168,654Sep 14

Tranco 130,104Radar top 100kCrUX —Majestic 277,648Umbrella 168,654checked Sep 14

recall.ai241,814 avg · W20▼ 3,525241,81454,145top 50k—129,846541,452Sep 14

Tranco 54,145Radar top 50kCrUX —Majestic 129,846Umbrella 541,452checked Sep 14

zeorouteplanner.com250,635 avg · W20▼ 10,732250,635250,635top 500k———Sep 14

Tranco 250,635Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

todesktop.com253,802 avg · W20▼ 8,803253,80222,279top 10k—645,86593,261Sep 14

Tranco 22,279Radar top 10kCrUX —Majestic 645,865Umbrella 93,261checked Sep 14

deepsource.com258,125 avg · W20▲ 1,639258,125351,298top 500k—164,952—Sep 14

Tranco 351,298Radar top 500kCrUX —Majestic 164,952Umbrella —checked Sep 14

replicate.com274,130 avg · W20, acquired▲ 2,622274,13029,251top 50ktop 100k10,823782,316Sep 14

Tranco 29,251Radar top 50kCrUX top 100kMajestic 10,823Umbrella 782,316checked Sep 14

h1.co284,467 avg · W20▼ 6,723284,467281,896top 200k—287,038—Sep 14

Tranco 281,896Radar top 200kCrUX —Majestic 287,038Umbrella —checked Sep 14

letterdrop.com286,980 avg · W20▲ 11,345286,980———286,980—Sep 14

Tranco —Radar —CrUX —Majestic 286,980Umbrella —checked Sep 14

joincandidhealth.com300,465 avg · W20▲ 1,603300,465300,465top 500k———Sep 14

Tranco 300,465Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

cortex.io302,055 avg · W20▲ 4,157302,055431,002top 500k—173,107—Sep 14

Tranco 431,002Radar top 500kCrUX —Majestic 173,107Umbrella —checked Sep 14

useparagon.com303,528 avg · W20▲ 22,593303,528146,871top 100k—379,078384,635Sep 14

Tranco 146,871Radar top 100kCrUX —Majestic 379,078Umbrella 384,635checked Sep 14

belvo.com308,822 avg · W20▼ 9,116308,82268,906top 200ktop 1M371,652485,909Sep 14

Tranco 68,906Radar top 200kCrUX top 1MMajestic 371,652Umbrella 485,909checked Sep 14

ello.com315,983 avg · W20▼ 11,998315,983———315,983—Sep 14

Tranco —Radar —CrUX —Majestic 315,983Umbrella —checked Sep 14

fitnessai.com324,066 avg · W20, acquired▼ 9,976324,066———324,066—Sep 14

Tranco —Radar —CrUX —Majestic 324,066Umbrella —checked Sep 14

jitter.video324,850 avg · W20▼ 29,046324,85086,967top 100ktop 100k161,533726,049Sep 14

Tranco 86,967Radar top 100kCrUX top 100kMajestic 161,533Umbrella 726,049checked Sep 14

mindsdb.comredirected334,482 avg · W20▼ 420334,482522,409——146,554—Sep 14

Tranco 522,409Radar —CrUX —Majestic 146,554Umbrella —checked Sep 14

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to mindshub.ai, a different site

upflow.io334,905 avg · W20▼ 3,865334,905471,108top 1M—198,701—Sep 14

Tranco 471,108Radar top 1MCrUX —Majestic 198,701Umbrella —checked Sep 14

pulley.com345,064 avg · W20▲ 1,441345,064402,270top 1M—287,857—Sep 14

Tranco 402,270Radar top 1MCrUX —Majestic 287,857Umbrella —checked Sep 14

junction.com345,710 avg · W20▼ 15,953345,71077,873top 100k—772,068187,190Sep 14

Tranco 77,873Radar top 100kCrUX —Majestic 772,068Umbrella 187,190checked Sep 14

getbenepass.com370,509 avg · W20▲ 7,854370,509457,248top 1M—283,770—Sep 14

Tranco 457,248Radar top 1MCrUX —Majestic 283,770Umbrella —checked Sep 14

airbyte.com382,893 avg · W20▼ 17,626382,893129,762top 500k—44,427974,489Sep 14

Tranco 129,762Radar top 500kCrUX —Majestic 44,427Umbrella 974,489checked Sep 14

metaplane.dev395,714 avg · W20, acquired▲ 6,241395,714———395,714—Sep 14

Tranco —Radar —CrUX —Majestic 395,714Umbrella —checked Sep 14

typedream.com405,725 avg · W20, acquired▼ 2,529405,725535,766top 1M—275,683—Sep 14

Tranco 535,766Radar top 1MCrUX —Majestic 275,683Umbrella —checked Sep 14

openbiome.org407,921 avg · W20▼ 6,647407,921———407,921—Sep 14

Tranco —Radar —CrUX —Majestic 407,921Umbrella —checked Sep 14

yassir.com407,989 avg · W20▲ 9,334407,989430,325—top 500k385,652—Sep 14

Tranco 430,325Radar —CrUX top 500kMajestic 385,652Umbrella —checked Sep 14

electroneek.com409,774 avg · W20▲ 8,951409,774419,385top 1M—400,162—Sep 14

Tranco 419,385Radar top 1MCrUX —Majestic 400,162Umbrella —checked Sep 14

hiration.com436,016 avg · W20▲ 35,826436,016329,517top 1M—114,116864,414Sep 14

Tranco 329,517Radar top 1MCrUX —Majestic 114,116Umbrella 864,414checked Sep 14

vori.com440,030 avg · W20▲ 26,018440,030440,030top 500k———Sep 14

Tranco 440,030Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

explo.co442,244 avg · W20▲ 17,424442,244291,950top 500k—482,170552,613Sep 14

Tranco 291,950Radar top 500kCrUX —Majestic 482,170Umbrella 552,613checked Sep 14

99minutos.com452,517 avg · W20▲ 11,379452,517179,135top 1Mtop 1M725,898—Sep 14

Tranco 179,135Radar top 1MCrUX top 1MMajestic 725,898Umbrella —checked Sep 14

tagmango.com454,044 avg · W20▼ 26,682454,044204,907top 200ktop 1M626,038531,188Sep 14

Tranco 204,907Radar top 200kCrUX top 1MMajestic 626,038Umbrella 531,188checked Sep 14

alude.com.br500,532 avg · W20▼ 2,223500,532500,532top 500ktop 1M——Sep 14

Tranco 500,532Radar top 500kCrUX top 1MMajestic —Umbrella —checked Sep 14

dashworks.ai505,299 avg · W20, acquired▲ 31,032505,299———505,299—Sep 14

Tranco —Radar —CrUX —Majestic 505,299Umbrella —checked Sep 14

cron.com505,457 avg · W20, acquired▲ 17,528505,457———505,457—Sep 14

Tranco —Radar —CrUX —Majestic 505,457Umbrella —checked Sep 14

tryriot.com516,089 avg · W20▲ 14,275516,089376,691top 200k—655,487—Sep 14

Tranco 376,691Radar top 200kCrUX —Majestic 655,487Umbrella —checked Sep 14

handoff.ai542,837 avg · W20▲ 27,319542,837518,671top 500k—567,003—Sep 14

Tranco 518,671Radar top 500kCrUX —Majestic 567,003Umbrella —checked Sep 14

fondeadora.com543,285 avg · W20▼ 1,669543,285———543,285—Sep 14

Tranco —Radar —CrUX —Majestic 543,285Umbrella —checked Sep 14

borong.com596,377 avg · W20▲ 28,953596,377596,377top 1M———Sep 14

Tranco 596,377Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

pahamify.com597,917 avg · W20▲ 14,894597,917597,917top 1Mtop 1M——Sep 14

Tranco 597,917Radar top 1MCrUX top 1MMajestic —Umbrella —checked Sep 14

investbamboo.com605,478 avg · W20▲ 10,939605,478646,795top 500ktop 1M500,703668,936Sep 14

Tranco 646,795Radar top 500kCrUX top 1MMajestic 500,703Umbrella 668,936checked Sep 14

usestable.com610,731 avg · W20▲ 28,157610,731631,336top 1M—590,126—Sep 14

Tranco 631,336Radar top 1MCrUX —Majestic 590,126Umbrella —checked Sep 14

linkana.com622,499 avg · W20▲ 26,924622,499503,414top 500k—741,583—Sep 14

Tranco 503,414Radar top 500kCrUX —Majestic 741,583Umbrella —checked Sep 14

lfcarry.com674,639 avg · W20▼ 7,682674,639953,797top 1M—395,481—Sep 14

Tranco 953,797Radar top 1MCrUX —Majestic 395,481Umbrella —checked Sep 14

atmo.ai676,269 avg · W20▲ 8,574676,269———676,269—Sep 14

Tranco —Radar —CrUX —Majestic 676,269Umbrella —checked Sep 14

sinai.com683,515 avg · W20▲ 9,291683,515———683,515—Sep 14

Tranco —Radar —CrUX —Majestic 683,515Umbrella —checked Sep 14

jetadmin.io700,047 avg · W20▲ 4,906700,047737,658top 500k—662,436—Sep 14

Tranco 737,658Radar top 500kCrUX —Majestic 662,436Umbrella —checked Sep 14

release.com713,392 avg · W20▲ 84,952713,392———713,392—Sep 14

Tranco —Radar —CrUX —Majestic 713,392Umbrella —checked Sep 14

myworkpay.com732,982 avg · W20▲ 33,037732,982938,577——527,386—Sep 14

Tranco 938,577Radar —CrUX —Majestic 527,386Umbrella —checked Sep 14

anglehealth.com749,504 avg · W20▲ 33,166749,504614,272top 1M—884,736—Sep 14

Tranco 614,272Radar top 1MCrUX —Majestic 884,736Umbrella —checked Sep 14

buildbuddy.io759,835 avg · W20▼ 6,589759,835664,824top 500k—854,845—Sep 14

Tranco 664,824Radar top 500kCrUX —Majestic 854,845Umbrella —checked Sep 14

aiosmedical.com761,441 avg · W20▲ 28,691761,441—top 1M——761,441Sep 14

Tranco —Radar top 1MCrUX —Majestic —Umbrella 761,441checked Sep 14

trykarat.com767,975 avg · W20▼ 90767,975———767,975—Sep 14

Tranco —Radar —CrUX —Majestic 767,975Umbrella —checked Sep 14

postera.ai769,063 avg · W20▼ 26,460769,063———769,063—Sep 14

Tranco —Radar —CrUX —Majestic 769,063Umbrella —checked Sep 14

querypie.com780,940 avg · W20▼ 1,052780,940———780,940—Sep 14

Tranco —Radar —CrUX —Majestic 780,940Umbrella —checked Sep 14

nexu.mx800,356 avg · W20▲ 43,369800,356——top 1M800,356—Sep 14

Tranco —Radar —CrUX top 1MMajestic 800,356Umbrella —checked Sep 14

ophelia.com810,797 avg · W20▲ 227810,797979,778—top 1M641,815—Sep 14

Tranco 979,778Radar —CrUX top 1MMajestic 641,815Umbrella —checked Sep 14

phonic.ai828,226 avg · W20, acquired▼ 7,331828,226———828,226—Sep 14

Tranco —Radar —CrUX —Majestic 828,226Umbrella —checked Sep 14

datasaur.ai859,718 avg · W20▲ 63,227859,718———859,718—Sep 14

Tranco —Radar —CrUX —Majestic 859,718Umbrella —checked Sep 14

livingcarbon.comparked867,061 avg · W20▼ 26,305867,061———867,061—Sep 14

Tranco —Radar —CrUX —Majestic 867,061Umbrella —checked Sep 14

this domain is parked; the rank measures the placeholder, not the company — the domain is on namebrightdns.com's nameservers, a domain sale platform

starkbank.com928,653 avg · W20▲ 50,429928,653—top 500k—928,653—Sep 14

Tranco —Radar top 500kCrUX —Majestic 928,653Umbrella —checked Sep 14

loophealth.com936,663 avg · W20▲ 21,204936,663—top 1M—936,663—Sep 14

Tranco —Radar top 1MCrUX —Majestic 936,663Umbrella —checked Sep 14

inaccord.com960,940 avg · W20960,940—top 1M—960,940—Sep 14

Tranco —Radar top 1MCrUX —Majestic 960,940Umbrella —checked Sep 14

havenservicing.com967,537 avg · W20▲ 4,485967,537967,537————Sep 14

Tranco 967,537Radar —CrUX —Majestic —Umbrella —checked Sep 14

signadot.com970,562 avg · W20▼ 34,113970,562———970,562—Sep 13

Tranco —Radar —CrUX —Majestic 970,562Umbrella —checked Sep 13

segmed.ai971,942 avg · W20▲ 17,495971,942———971,942—Sep 9

Tranco —Radar —CrUX —Majestic 971,942Umbrella —checked Sep 9

abalonebio.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

ablejobs.co— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

adenhq.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

algenbio.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

altaytherapeutics.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

ansabio.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

avion.health— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

bego.ai— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

bikry.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

breezeful.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

chaosgenius.ioredirected— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to flexera.com, a different site

checkars.comgone— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain is gone; the rank is what it left behind — no A or AAAA record

crowdforce.io— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

daedalus.de— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

deepmeditate.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

delt.ai— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

dittowords.com— avg · W20——top 1M———Sep 13

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Sep 13

docvita.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

dropprintgen.com— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

equatortherapeutics.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

eternal.gg— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

ezeit.ai— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

factoredquality.com— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

farcast.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

farmtheory.in— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

finlens.app— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

100

flowdash.com— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

101

flowglad.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

102

futuralabs.io— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

103

gaspos.cogone— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain is gone; the rank is what it left behind — the homepage returns 404

104

genecis.co— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

105

generalproximity.bio— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

106

getkosh.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

107

getsomatic.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

108

getswipe.comgone— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain is gone; the rank is what it left behind — the homepage returns 404

109

giveaway.mobigone— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain is gone; the rank is what it left behind — no A or AAAA record

110

gosavvy.com— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

111

guruhotel.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

112

handl.ai— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

113

healthlane.co— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

114

hent.com.br— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

115

heyplura.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

116

hiresweet.com— avg · W20——top 1M———Sep 14

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

117

hoss.comredirected— avg · W20, acquired———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to snagged.com, a different site

118

infield.ai— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

119

isabl.io— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

120

jenfi.com— avg · W20———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

show 20 more

a — means that source hasn't ranked the site; the average uses whichever exact ranks exist

History · every change, public

Sep 14 06:03sync with the YC sync, 9 sites changed

Sep 13 06:03sync with the YC sync, 1 site changed

Sep 12 06:02sync with the YC sync, 6 sites changed

Sep 11 06:03sync with the YC sync, 11 sites changed

Sep 10 06:03sync with the YC sync, 15 sites changed

Sep 9 06:03sync with the YC sync, 13 sites changed

Sep 8 06:03sync with the YC sync, 5 sites shown

This list is kept in step with the official YC API, so it isn't editable here. This is just for fun.