Y Combinator Startups

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

151 of 5,025 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

W19 · 151 sites · ← all sites

151 sites, including 23 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

buymeacoffee.com24,316 avg · W19▲ 4824,3164,297top 20ktop 50k1,23367,417Jul 30

Tranco 4,297Radar top 20kCrUX top 50kMajestic 1,233Umbrella 67,417checked Jul 30

dyneti.com36,534 avg · W19▲ 2,14036,53440,393top 50k——32,675Jul 30

Tranco 40,393Radar top 50kCrUX —Majestic —Umbrella 32,675checked Jul 30

kalshi.com38,299 avg · W19▼ 32938,2999,981top 5ktop 50k16,72688,191Jul 30

Tranco 9,981Radar top 5kCrUX top 50kMajestic 16,726Umbrella 88,191checked Jul 30

ashbyhq.com42,917 avg · W19▼ 84842,91721,108top 20ktop 500k15,08792,556Jul 30

Tranco 21,108Radar top 20kCrUX top 500kMajestic 15,087Umbrella 92,556checked Jul 30

wanderlog.com47,626 avg · W19▼ 3,95247,62618,094top 20ktop 100k10,820113,965Jul 30

Tranco 18,094Radar top 20kCrUX top 100kMajestic 10,820Umbrella 113,965checked Jul 30

termius.com61,386 avg · W19▼ 24561,38621,176top 10ktop 1M58,994103,989Jul 30

Tranco 21,176Radar top 10kCrUX top 1MMajestic 58,994Umbrella 103,989checked Jul 30

deel.com69,899 avg · W19▲ 4,70069,89929,352top 50k—15,073165,273Jul 30

Tranco 29,352Radar top 50kCrUX —Majestic 15,073Umbrella 165,273checked Jul 30

postscript.io74,881 avg · W19▲ 17374,88112,155top 10k—193,41119,076Jul 30

Tranco 12,155Radar top 10kCrUX —Majestic 193,411Umbrella 19,076checked Jul 30

memfault.com83,273 avg · W19, acquired▼ 1,99583,27312,595top 5k—210,59926,625Jul 30

Tranco 12,595Radar top 5kCrUX —Majestic 210,599Umbrella 26,625checked Jul 30

ourworldindata.org105,598 avg · W19▼ 3,097105,5983,696top 100ktop 100k926312,172Jul 30

Tranco 3,696Radar top 100kCrUX top 100kMajestic 926Umbrella 312,172checked Jul 30

alpaca.markets131,015 avg · W19▼ 13,184131,01518,250top 10ktop 500k56,401318,393Jul 30

Tranco 18,250Radar top 10kCrUX top 500kMajestic 56,401Umbrella 318,393checked Jul 30

zerodown.comredirected141,079 avg · W19, acquired▼ 11,281141,079165,950top 200k—116,207—Jul 30

Tranco 165,950Radar top 200kCrUX —Majestic 116,207Umbrella —checked Jul 30

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

sapling.ai147,210 avg · W19▼ 2,966147,21086,079top 100ktop 500k49,299306,252Jul 30

Tranco 86,079Radar top 100kCrUX top 500kMajestic 49,299Umbrella 306,252checked Jul 30

coursedog.com195,207 avg · W19, acquired▲ 7,410195,207102,476top 100k—256,522226,623Jul 30

Tranco 102,476Radar top 100kCrUX —Majestic 256,522Umbrella 226,623checked Jul 30

theforage.com196,980 avg · W19, acquired▼ 12,608196,98046,242top 200ktop 50k35,693509,004Jul 30

Tranco 46,242Radar top 200kCrUX top 50kMajestic 35,693Umbrella 509,004checked Jul 30

upsolve.org201,751 avg · W19▲ 2,154201,751274,001top 1M—129,501—Jul 30

Tranco 274,001Radar top 1MCrUX —Majestic 129,501Umbrella —checked Jul 30

mudrex.com221,208 avg · W19▲ 3,123221,208280,127top 500ktop 500k162,289—Jul 30

Tranco 280,127Radar top 500kCrUX top 500kMajestic 162,289Umbrella —checked Jul 30

keepertax.com228,827 avg · W19▲ 1,203228,827322,104top 1M—135,549—Jul 30

Tranco 322,104Radar top 1MCrUX —Majestic 135,549Umbrella —checked Jul 30

dagger.io240,223 avg · W19▼ 3,046240,223253,185top 200k—227,261—Jul 30

Tranco 253,185Radar top 200kCrUX —Majestic 227,261Umbrella —checked Jul 30

cosmicjs.com255,083 avg · W19▲ 8,824255,083182,135top 200k—179,994403,121Jul 30

Tranco 182,135Radar top 200kCrUX —Majestic 179,994Umbrella 403,121checked Jul 30

exlyapp.com258,213 avg · W19▼ 1,119258,213360,040top 500k—156,385—Jul 30

Tranco 360,040Radar top 500kCrUX —Majestic 156,385Umbrella —checked Jul 30

glideapps.com269,142 avg · W19▼ 8,210269,14295,591top 200ktop 500k37,485674,349Jul 30

Tranco 95,591Radar top 200kCrUX top 500kMajestic 37,485Umbrella 674,349checked Jul 30

demodesk.com275,057 avg · W19▼ 979275,057240,727top 200ktop 1M309,387—Jul 30

Tranco 240,727Radar top 200kCrUX top 1MMajestic 309,387Umbrella —checked Jul 30

doppler.com292,799 avg · W19▼ 20,742292,79925,762top 20k—55,386797,248Jul 30

Tranco 25,762Radar top 20kCrUX —Majestic 55,386Umbrella 797,248checked Jul 30

sunsama.com292,862 avg · W19▼ 25,886292,862147,407top 100k—126,003605,177Jul 30

Tranco 147,407Radar top 100kCrUX —Majestic 126,003Umbrella 605,177checked Jul 30

pachama.comredirected292,958 avg · W19, acquired▲ 6,302292,958———292,958—Jul 30

Tranco —Radar —CrUX —Majestic 292,958Umbrella —checked Jul 30

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

communityphone.org302,227 avg · W19▲ 11,350302,227364,293top 500ktop 1M240,161—Jul 30

Tranco 364,293Radar top 500kCrUX top 1MMajestic 240,161Umbrella —checked Jul 30

supernova.io303,199 avg · W19▼ 9,638303,199359,322top 500k—247,076—Jul 30

Tranco 359,322Radar top 500kCrUX —Majestic 247,076Umbrella —checked Jul 30

avo.app319,501 avg · W19▲ 3,348319,50134,112top 20k—896,11828,273Jul 30

Tranco 34,112Radar top 20kCrUX —Majestic 896,118Umbrella 28,273checked Jul 30

heartaerospace.com324,056 avg · W19▼ 6,168324,056———324,056—Jul 30

Tranco —Radar —CrUX —Majestic 324,056Umbrella —checked Jul 30

skill-lync.com341,152 avg · W19▲ 1,134341,152426,717top 500ktop 1M255,586—Jul 30

Tranco 426,717Radar top 500kCrUX top 1MMajestic 255,586Umbrella —checked Jul 30

golinks.io358,665 avg · W19▲ 14,819358,665278,116top 200k—396,375401,503Jul 30

Tranco 278,116Radar top 200kCrUX —Majestic 396,375Umbrella 401,503checked Jul 30

kovi.com.br374,847 avg · W19, acquired▼ 33,354374,847265,912top 1Mtop 500k483,781—Jul 30

Tranco 265,912Radar top 1MCrUX top 500kMajestic 483,781Umbrella —checked Jul 30

inito.com377,270 avg · W19▲ 1,846377,270183,068top 200k—276,571672,172Jul 30

Tranco 183,068Radar top 200kCrUX —Majestic 276,571Umbrella 672,172checked Jul 30

truora.com402,998 avg · W19▲ 2,649402,998383,426top 500k—422,570—Jul 30

Tranco 383,426Radar top 500kCrUX —Majestic 422,570Umbrella —checked Jul 30

jetpackaviation.com419,763 avg · W19▲ 6,229419,763———419,763—Jul 30

Tranco —Radar —CrUX —Majestic 419,763Umbrella —checked Jul 30

shiokmeats.com421,007 avg · W19, acquired▲ 19,329421,007———421,007—Jul 30

Tranco —Radar —CrUX —Majestic 421,007Umbrella —checked Jul 30

shef.com443,587 avg · W19▼ 20,390443,587343,502top 500ktop 1M543,672—Jul 30

Tranco 343,502Radar top 500kCrUX top 1MMajestic 543,672Umbrella —checked Jul 30

lezzoo.com444,177 avg · W19▲ 47,453444,177444,177top 1M———Jul 30

Tranco 444,177Radar top 1MCrUX —Majestic —Umbrella —checked Jul 30

handle.com463,021 avg · W19▼ 1,221463,021413,850top 1M—419,848555,365Jul 30

Tranco 413,850Radar top 1MCrUX —Majestic 419,848Umbrella 555,365checked Jul 30

okteto.com463,774 avg · W19▼ 10,791463,774—top 1M—463,774—Jul 30

Tranco —Radar top 1MCrUX —Majestic 463,774Umbrella —checked Jul 30

middesk.com472,728 avg · W19▲ 97,889472,728381,546top 200k—487,561549,076Jul 30

Tranco 381,546Radar top 200kCrUX —Majestic 487,561Umbrella 549,076checked Jul 30

superb-ai.com481,882 avg · W19▲ 8,439481,882———481,882—Jul 30

Tranco —Radar —CrUX —Majestic 481,882Umbrella —checked Jul 30

cityfurnish.com491,513 avg · W19▲ 6,046491,513499,241—top 500k483,784—Jul 30

Tranco 499,241Radar —CrUX top 500kMajestic 483,784Umbrella —checked Jul 30

rune.ai543,890 avg · W19▼ 25,251543,890543,890top 200k———Jul 30

Tranco 543,890Radar top 200kCrUX —Majestic —Umbrella —checked Jul 30

keynua.com544,115 avg · W19▼ 28,852544,115544,115top 1M———Jul 30

Tranco 544,115Radar top 1MCrUX —Majestic —Umbrella —checked Jul 30

shipper.id589,058 avg · W19▲ 17,182589,058594,179top 500ktop 1M583,936—Jul 30

Tranco 594,179Radar top 500kCrUX top 1MMajestic 583,936Umbrella —checked Jul 30

nabis.com614,102 avg · W19▲ 10,538614,102374,265top 1M—853,939—Jul 30

Tranco 374,265Radar top 1MCrUX —Majestic 853,939Umbrella —checked Jul 30

ultralig.ht615,191 avg · W19▼ 28,356615,191———615,191—Jul 30

Tranco —Radar —CrUX —Majestic 615,191Umbrella —checked Jul 30

cuanto.app618,165 avg · W19▲ 9,362618,165——top 1M618,165—Jul 30

Tranco —Radar —CrUX top 1MMajestic 618,165Umbrella —checked Jul 30

nala.com620,552 avg · W19▲ 33,422620,552———620,552—Jul 30

Tranco —Radar —CrUX —Majestic 620,552Umbrella —checked Jul 30

naturallclub.com641,769 avg · W19▼ 15,114641,769———641,769—Jul 30

Tranco —Radar —CrUX —Majestic 641,769Umbrella —checked Jul 30

windsor.io642,134 avg · W19, acquired▼ 14,834642,134———642,134—Jul 30

Tranco —Radar —CrUX —Majestic 642,134Umbrella —checked Jul 30

nowports.com659,898 avg · W19▲ 19,815659,898———659,898—Jul 30

Tranco —Radar —CrUX —Majestic 659,898Umbrella —checked Jul 30

numero.ai673,952 avg · W19▼ 14,262673,952395,066top 1M—952,838—Jul 30

Tranco 395,066Radar top 1MCrUX —Majestic 952,838Umbrella —checked Jul 30

thejuggernaut.com676,152 avg · W19▲ 5,433676,152979,297——373,006—Jul 30

Tranco 979,297Radar —CrUX —Majestic 373,006Umbrella —checked Jul 30

atlascard.com709,156 avg · W19▲ 46,220709,156———709,156—Jul 30

Tranco —Radar —CrUX —Majestic 709,156Umbrella —checked Jul 30

vertofx.comredirected729,368 avg · W19▲ 1,554729,368857,025top 500k—601,711—Jul 30

Tranco 857,025Radar top 500kCrUX —Majestic 601,711Umbrella —checked Jul 30

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

prometheusfuels.comredirected736,563 avg · W19▲ 33,061736,563———736,563—Jul 30

Tranco —Radar —CrUX —Majestic 736,563Umbrella —checked Jul 30

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

ampup.io744,747 avg · W19▼ 22,415744,747619,536top 1M—869,957—Jul 30

Tranco 619,536Radar top 1MCrUX —Majestic 869,957Umbrella —checked Jul 30

overview.ai769,140 avg · W19▲ 17,759769,140887,788top 500k—650,492—Jul 30

Tranco 887,788Radar top 500kCrUX —Majestic 650,492Umbrella —checked Jul 30

catch.co771,168 avg · W19, acquired▲ 35,728771,168———771,168—Jul 30

Tranco —Radar —CrUX —Majestic 771,168Umbrella —checked Jul 30

convex.com786,772 avg · W19, acquired▲ 20,807786,772———786,772—Jul 30

Tranco —Radar —CrUX —Majestic 786,772Umbrella —checked Jul 30

flockjay.com808,314 avg · W19▲ 7,556808,314691,804top 1M—924,824—Jul 30

Tranco 691,804Radar top 1MCrUX —Majestic 924,824Umbrella —checked Jul 30

acciojob.com835,243 avg · W19▲ 6,288835,243686,584top 1Mtop 500k983,901—Jul 30

Tranco 686,584Radar top 1MCrUX top 500kMajestic 983,901Umbrella —checked Jul 30

convictional.com929,431 avg · W19▲ 12,134929,431———929,431—Jul 30

Tranco —Radar —CrUX —Majestic 929,431Umbrella —checked Jul 30

cocoon.com959,601 avg · W19, acquired▼ 5,744959,601———959,601—Jul 30

Tranco —Radar —CrUX —Majestic 959,601Umbrella —checked Jul 30

axdraft.comgone983,609 avg · W19, acquired▼ 41,333983,609———983,609—Jul 28

Tranco —Radar —CrUX —Majestic 983,609Umbrella —checked Jul 28

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

1910.ai— avg · W19———————

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

accept.incgone— avg · W19, acquired———————

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

this domain is gone; the rank is what it left behind — the domain doesn't resolve (NXDOMAIN)

aiinsurance.io— avg · W19———————

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

allsome.com— avg · W19———————

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

alluresystems.comgone— avg · W19, acquired———————

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

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

ascen.com— avg · W19, acquired——top 1M———Jul 19

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 19

askdata.com— avg · W19, acquired———————

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

atomicalchemy.usredirected— avg · W19, acquired———————

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

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

auravision.ai— avg · W19———————

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

autodial.com— avg · W19———————

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

bensen.aigone— avg · W19———————

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

this domain is gone; the rank is what it left behind — the domain doesn't resolve (NXDOMAIN)

bentocart.comredirected— avg · W19———————

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

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

bottomless.com— avg · W19——top 1M———Jul 26

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 26

boundarylayer.techredirected— avg · W19———————

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

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

brainkey.ai— avg · W19———————

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

bunkerhillhealth.com— avg · W19———————

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

centaur.ai— avg · W19———————

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

claytonfarms.com— avg · W19———————

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

credpal.com— avg · W19———————

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

docbot.coredirected— avg · W19, acquired———————

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

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

doorport.com— avg · W19, acquired———————

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

eclipsefoods.com— avg · W19———————

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

edyst.com— avg · W19———————

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

elph.comredirected— avg · W19, acquired———————

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

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

emilabs.ai— avg · W19———————

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

excepgen.com— avg · W19———————

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

firstdelivery.com— avg · W19———————

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

flowercompany.com— avg · W19——top 1M———Jul 26

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 26

geosite.ioredirected— avg · W19, acquired———————

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

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

getdockup.com— avg · W19———————

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

getpulse.in— avg · W19———————

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

100

globe.exchange— avg · W19———————

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

101

gotlanded.com— avg · W19——top 1Mtop 1M——Jul 30

Tranco —Radar top 1MCrUX top 1MMajestic —Umbrella —checked Jul 30

102

helloaxel.com— avg · W19———top 1M——Jul 30

Tranco —Radar —CrUX top 1MMajestic —Umbrella —checked Jul 30

103

heycanopy.com— avg · W19———————

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

104

insightbrowser.com— avg · W19, acquired———————

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

105

instapathbio.com— avg · W19———————

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

106

intacttherapeutics.com— avg · W19———————

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

107

intelline.ca— avg · W19———————

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

108

interprime.co— avg · W19, acquired———————

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

109

juzibot.com— avg · W19———————

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

110

latchel.com— avg · W19——top 1M———Jul 30

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 30

111

leahlabs.com— avg · W19———————

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

112

maplematerials.comgone— avg · W19———————

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

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

113

marsauto.com— avg · W19———————

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

114

medcrypt.coredirected— avg · W19———————

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

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

115

mobot.io— avg · W19———————

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

116

onswitchboard.com— avg · W19——top 1M———Jul 26

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 26

117

outrival.com— avg · W19———————

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

118

patternfast.com— avg · W19———————

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

119

playbalto.comparked— avg · W19, acquired———————

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

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

120

pools.events— avg · W19——top 1M———Jul 30

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 30

121

positive.co— avg · W19———————

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

122

preflight.comparked— avg · W19, acquired———————

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

this domain is parked; the rank measures the placeholder, not the company — the homepage redirects to afternic.com, a domain sale platform

123

probablygenetic.com— avg · W19———————

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

124

pyxai.com— avg · W19———————

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

125

ravn.com— avg · W19———————

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

126

rct.ai— avg · W19———————

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

127

reelables.com— avg · W19———————

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

128

schoolable.cogone— avg · W19———————

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

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

show 20 more

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

History · every change, public

Jul 30 06:02sync with the YC sync, 15 sites changed

Jul 29 06:03sync with the YC sync, 23 sites changed

Jul 28 06:03sync with the YC sync, 9 sites changed

Jul 27 06:02sync with the YC sync, 7 sites changed

Jul 26 06:03sync with the YC sync, 4 sites changed

Jul 25 06:03sync with the YC sync, 2 sites shown

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