Y Combinator Startups

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

109 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

W18 · 109 sites · ← all sites

109 sites, including 16 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

substack.com3,582 avg · W18▲ 1843,582450top 2ktop 10k16410,133Sep 14

Tranco 450Radar top 2kCrUX top 10kMajestic 164Umbrella 10,133checked Sep 14

opensea.io24,148 avg · W18▼ 35824,1484,304top 5ktop 50k2,01266,127Sep 14

Tranco 4,304Radar top 5kCrUX top 50kMajestic 2,012Umbrella 66,127checked Sep 14

replit.com30,171 avg · W18▼ 39930,1713,611top 5ktop 10k2,57684,327Sep 14

Tranco 3,611Radar top 5kCrUX top 10kMajestic 2,576Umbrella 84,327checked Sep 14

groww.in33,604 avg · W18, public▼ 71733,6045,794top 10ktop 5k31,14363,875Sep 14

Tranco 5,794Radar top 10kCrUX top 5kMajestic 31,143Umbrella 63,875checked Sep 14

vanta.com65,329 avg · W18▼ 99465,32918,491top 10ktop 500k30,226147,270Sep 14

Tranco 18,491Radar top 10kCrUX top 500kMajestic 30,226Umbrella 147,270checked Sep 14

safetywing.com77,730 avg · W18▲ 42877,730122,000top 500ktop 1M33,460—Sep 14

Tranco 122,000Radar top 500kCrUX top 1MMajestic 33,460Umbrella —checked Sep 14

veriff.com91,281 avg · W18▼ 9,21391,28136,441top 50ktop 500k63,148174,255Sep 14

Tranco 36,441Radar top 50kCrUX top 500kMajestic 63,148Umbrella 174,255checked Sep 14

biorender.com135,155 avg · W18▼ 333135,15534,818top 50ktop 500k50,910319,736Sep 14

Tranco 34,818Radar top 50kCrUX top 500kMajestic 50,910Umbrella 319,736checked Sep 14

getshogun.com153,520 avg · W18▼ 1,466153,520133,822top 100k—133,265193,472Sep 14

Tranco 133,822Radar top 100kCrUX —Majestic 133,265Umbrella 193,472checked Sep 14

cointracker.com159,988 avg · W18▲ 7,207159,988235,434top 500ktop 1M84,542—Sep 14

Tranco 235,434Radar top 500kCrUX top 1MMajestic 84,542Umbrella —checked Sep 14

jasper.ai198,855 avg · W18▲ 612198,85512,516top 50ktop 500k3,046581,004Sep 14

Tranco 12,516Radar top 50kCrUX top 500kMajestic 3,046Umbrella 581,004checked Sep 14

letsdothis.com225,152 avg · W18▲ 41,792225,152161,086top 200ktop 500k102,012412,359Sep 14

Tranco 161,086Radar top 200kCrUX top 500kMajestic 102,012Umbrella 412,359checked Sep 14

onuniverse.com230,384 avg · W18▼ 1,533230,384340,685top 1M—120,082—Sep 14

Tranco 340,685Radar top 1MCrUX —Majestic 120,082Umbrella —checked Sep 14

quantstamp.com239,918 avg · W18▲ 2,601239,918366,525——113,311—Sep 14

Tranco 366,525Radar —CrUX —Majestic 113,311Umbrella —checked Sep 14

assembly.com286,988 avg · W18▲ 20,702286,988299,161top 500k—274,814—Sep 14

Tranco 299,161Radar top 500kCrUX —Majestic 274,814Umbrella —checked Sep 14

newfront.com304,485 avg · W18, acquired▲ 12,456304,485264,602top 500k—344,367—Sep 14

Tranco 264,602Radar top 500kCrUX —Majestic 344,367Umbrella —checked Sep 14

snackpass.co320,286 avg · W18▼ 333320,286259,455top 500k—381,117—Sep 14

Tranco 259,455Radar top 500kCrUX —Majestic 381,117Umbrella —checked Sep 14

modernhealth.com325,085 avg · W18▼ 2,749325,085451,446top 1M—198,723—Sep 14

Tranco 451,446Radar top 1MCrUX —Majestic 198,723Umbrella —checked Sep 14

aspireapp.com327,732 avg · W18▲ 55,192327,732142,948top 200ktop 1M115,983724,265Sep 14

Tranco 142,948Radar top 200kCrUX top 1MMajestic 115,983Umbrella 724,265checked Sep 14

slite.com330,352 avg · W18▲ 29,037330,352103,042top 100k—58,044829,971Sep 14

Tranco 103,042Radar top 100kCrUX —Majestic 58,044Umbrella 829,971checked Sep 14

draftbit.com339,283 avg · W18▲ 12,303339,283480,878top 1M—197,687—Sep 14

Tranco 480,878Radar top 1MCrUX —Majestic 197,687Umbrella —checked Sep 14

runahr.com344,866 avg · W18▲ 674344,866388,842top 1Mtop 500k300,890—Sep 14

Tranco 388,842Radar top 1MCrUX top 500kMajestic 300,890Umbrella —checked Sep 14

weekend.com354,156 avg · W18▼ 29,879354,156311,086top 1M—397,226—Sep 14

Tranco 311,086Radar top 1MCrUX —Majestic 397,226Umbrella —checked Sep 14

meitre.com371,710 avg · W18▲ 6,237371,710249,776top 500k—154,983710,371Sep 14

Tranco 249,776Radar top 500kCrUX —Majestic 154,983Umbrella 710,371checked Sep 14

captivateiq.com379,830 avg · W18▼ 271,429379,83030,546top 200k—256,792852,153Sep 14

Tranco 30,546Radar top 200kCrUX —Majestic 256,792Umbrella 852,153checked Sep 14

youteam.ioredirected384,695 avg · W18, acquired▼ 10,757384,695583,089——186,301—Sep 14

Tranco 583,089Radar —CrUX —Majestic 186,301Umbrella —checked Sep 14

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

worklytics.co396,010 avg · W18▲ 9,228396,010———396,010—Sep 14

Tranco —Radar —CrUX —Majestic 396,010Umbrella —checked Sep 14

observe.ai398,690 avg · W18▼ 2,845398,69049,560top 100k—156,455990,056Sep 14

Tranco 49,560Radar top 100kCrUX —Majestic 156,455Umbrella 990,056checked Sep 14

sourcify.com426,264 avg · W18▼ 31,611426,264———426,264—Sep 14

Tranco —Radar —CrUX —Majestic 426,264Umbrella —checked Sep 14

zbiotics.com426,293 avg · W18▲ 3,076426,293491,967—top 1M360,619—Sep 14

Tranco 491,967Radar —CrUX top 1MMajestic 360,619Umbrella —checked Sep 14

bearflagrobotics.com428,085 avg · W18, acquired▼ 99,285428,085428,085top 1M———Sep 14

Tranco 428,085Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

pulse.qagone444,896 avg · W18, acquired▲ 80,009444,896425,100top 1M——464,691Sep 14

Tranco 425,100Radar top 1MCrUX —Majestic —Umbrella 464,691checked Sep 14

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

aerones.com453,548 avg · W18▲ 16,152453,548—top 1M—453,548—Sep 14

Tranco —Radar top 1MCrUX —Majestic 453,548Umbrella —checked Sep 14

qulture.rocks469,037 avg · W18, acquired▲ 6,840469,037230,196top 500ktop 1M567,506609,409Sep 14

Tranco 230,196Radar top 500kCrUX top 1MMajestic 567,506Umbrella 609,409checked Sep 14

mojo-app.com474,121 avg · W18, acquired▼ 2,928474,121732,922——215,320—Sep 14

Tranco 732,922Radar —CrUX —Majestic 215,320Umbrella —checked Sep 14

simetrik.com516,135 avg · W18▲ 13,496516,135419,110top 500k—613,159—Sep 14

Tranco 419,110Radar top 500kCrUX —Majestic 613,159Umbrella —checked Sep 14

tributi.com530,092 avg · W18▲ 10,748530,092462,144top 1Mtop 500k598,040—Sep 14

Tranco 462,144Radar top 1MCrUX top 500kMajestic 598,040Umbrella —checked Sep 14

sqreen.com530,988 avg · W18, acquired▼ 36,721530,988———530,988—Sep 14

Tranco —Radar —CrUX —Majestic 530,988Umbrella —checked Sep 14

keyvalues.com536,946 avg · W18▼ 34,909536,946———536,946—Sep 14

Tranco —Radar —CrUX —Majestic 536,946Umbrella —checked Sep 14

acely.com556,092 avg · W18▲ 19,019556,092327,167top 500ktop 1M543,517797,591Sep 14

Tranco 327,167Radar top 500kCrUX top 1MMajestic 543,517Umbrella 797,591checked Sep 14

biobot.io557,414 avg · W18▲ 7,960557,414882,910——231,917—Sep 14

Tranco 882,910Radar —CrUX —Majestic 231,917Umbrella —checked Sep 14

provenskincare.com569,823 avg · W18▲ 37,024569,823877,715——261,930—Sep 14

Tranco 877,715Radar —CrUX —Majestic 261,930Umbrella —checked Sep 14

gainful.com582,289 avg · W18▼ 73,147582,289872,325——292,252—Sep 14

Tranco 872,325Radar —CrUX —Majestic 292,252Umbrella —checked Sep 14

treasuryprime.com593,255 avg · W18▲ 62,186593,255—top 1M—593,255—Sep 14

Tranco —Radar top 1MCrUX —Majestic 593,255Umbrella —checked Sep 14

lucy.co621,156 avg · W18▲ 20,981621,156663,036—top 1M579,276—Sep 14

Tranco 663,036Radar —CrUX top 1MMajestic 579,276Umbrella —checked Sep 14

superapp.id622,370 avg · W18▼ 41,152622,370———622,370—Sep 14

Tranco —Radar —CrUX —Majestic 622,370Umbrella —checked Sep 14

pelagohealth.com623,084 avg · W18▼ 1,239623,084978,075——268,093—Sep 14

Tranco 978,075Radar —CrUX —Majestic 268,093Umbrella —checked Sep 14

blueberrypediatrics.com633,373 avg · W18▲ 1,088633,373614,512top 1M—652,233—Sep 14

Tranco 614,512Radar top 1MCrUX —Majestic 652,233Umbrella —checked Sep 14

lookaftermybills.comgone694,787 avg · W18, acquired▲ 19,331694,787———694,787—Sep 14

Tranco —Radar —CrUX —Majestic 694,787Umbrella —checked Sep 14

this domain is gone; the rank is what it left behind — the homepage returns 410

anjuna.io726,764 avg · W18▲ 19,593726,764———726,764—Sep 14

Tranco —Radar —CrUX —Majestic 726,764Umbrella —checked Sep 14

fondo.com754,587 avg · W18▼ 32,927754,587———754,587—Sep 14

Tranco —Radar —CrUX —Majestic 754,587Umbrella —checked Sep 14

onederful.coredirected806,222 avg · W18, acquired806,222————806,222Aug 18

Tranco —Radar —CrUX —Majestic —Umbrella 806,222checked Aug 18

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

swayable.com873,494 avg · W18▲ 13,396873,494———873,494—Sep 14

Tranco —Radar —CrUX —Majestic 873,494Umbrella —checked Sep 14

dataform.co988,338 avg · W18, acquired988,338———988,338—Aug 20

Tranco —Radar —CrUX —Majestic 988,338Umbrella —checked Aug 20

nectome.com989,755 avg · W18▼ 36,862989,755———989,755—Sep 11

Tranco —Radar —CrUX —Majestic 989,755Umbrella —checked Sep 11

lawyaw.comredirected994,107 avg · W18, acquired▲ 1,772994,107———994,107—Sep 13

Tranco —Radar —CrUX —Majestic 994,107Umbrella —checked Sep 13

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

codestream.comredirected995,679 avg · W18, acquired▼ 12,938995,679———995,679—Sep 13

Tranco —Radar —CrUX —Majestic 995,679Umbrella —checked Sep 13

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

promise-pay.com995,987 avg · W18▼ 67,366995,987———995,987—Sep 11

Tranco —Radar —CrUX —Majestic 995,987Umbrella —checked Sep 11

aesculatech.com— avg · W18———————

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

algosurg.comredirected— avg · W18———————

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

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

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.