Ranked Index/yc
Synced from the official YC API · Oct 29

Y Combinator Startups

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

141 of 5,218 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 · S27
P25 · P26

P25 · 141 sites · ← all sites

141 sites, including 5 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked
1better-auth.com232,189 avg · P25▲ 20,355232,189162,006top 200ktop 1M103,366431,194Oct 29
Tranco 162,006Radar top 200kCrUX top 1MMajestic 103,366Umbrella 431,194checked Oct 29
2voiceos.com281,959 avg · P25▲ 82,291281,959281,959top 200k———Oct 29
Tranco 281,959Radar top 200kCrUX —Majestic —Umbrella —checked Oct 29
3cua.ai310,178 avg · P25▲ 44,606310,178324,966top 200k—295,390—Oct 29
Tranco 324,966Radar top 200kCrUX —Majestic 295,390Umbrella —checked Oct 29
4humanbehavior.co310,437 avg · P25▼ 41,572310,437310,437top 500k———Oct 29
Tranco 310,437Radar top 500kCrUX —Majestic —Umbrella —checked Oct 29
5willowvoice.com313,543 avg · P25▲ 26,654313,54375,593top 50k—284,483580,554Oct 29
Tranco 75,593Radar top 50kCrUX —Majestic 284,483Umbrella 580,554checked Oct 29
6tinfoil.sh315,197 avg · P25▲ 54,050315,197190,672top 100k—439,722—Oct 29
Tranco 190,672Radar top 100kCrUX —Majestic 439,722Umbrella —checked Oct 29
7pgdog.dev336,625 avg · P25▼ 39,038336,625———336,625—Oct 29
Tranco —Radar —CrUX —Majestic 336,625Umbrella —checked Oct 29
8usefeyn.com360,134 avg · P25▼ 20,800360,134———360,134—Oct 29
Tranco —Radar —CrUX —Majestic 360,134Umbrella —checked Oct 29
9youlearn.ai413,637 avg · P25▲ 24,113413,637415,865top 1Mtop 1M411,408—Oct 29
Tranco 415,865Radar top 1MCrUX top 1MMajestic 411,408Umbrella —checked Oct 29
10qfex.com415,956 avg · P25▲ 40,871415,956415,956top 200k———Oct 29
Tranco 415,956Radar top 200kCrUX —Majestic —Umbrella —checked Oct 29
11blaxel.ai425,680 avg · P25, acquired▼ 35,655425,680—top 1M—425,680—Oct 29
Tranco —Radar top 1MCrUX —Majestic 425,680Umbrella —checked Oct 29
12klavis.ai425,788 avg · P25▼ 43,641425,788—top 1M—425,788—Oct 29
Tranco —Radar top 1MCrUX —Majestic 425,788Umbrella —checked Oct 29
13sim.ai486,865 avg · P25▲ 115,248486,865674,434top 500k—299,295—Oct 29
Tranco 674,434Radar top 500kCrUX —Majestic 299,295Umbrella —checked Oct 29
14cubic.dev503,001 avg · P25▲ 30,227503,001615,814top 1M—390,188—Oct 29
Tranco 615,814Radar top 1MCrUX —Majestic 390,188Umbrella —checked Oct 29
15probo.com509,547 avg · P25▲ 33,578509,547—top 1M—509,547—Oct 29
Tranco —Radar top 1MCrUX —Majestic 509,547Umbrella —checked Oct 29
16morphik.ai621,486 avg · P25▼ 141,228621,486———621,486—Oct 29
Tranco —Radar —CrUX —Majestic 621,486Umbrella —checked Oct 29
17wavedash.com640,845 avg · P25▲ 33,331640,845566,296top 500k—861,492494,748Oct 29
Tranco 566,296Radar top 500kCrUX —Majestic 861,492Umbrella 494,748checked Oct 29
18usenaive.ai709,589 avg · P25709,589————709,589Oct 28
Tranco —Radar —CrUX —Majestic —Umbrella 709,589checked Oct 28
19getnao.io721,893 avg · P25▲ 158,868721,893———721,893—Oct 29
Tranco —Radar —CrUX —Majestic 721,893Umbrella —checked Oct 29
20paperinstruments.com726,396 avg · P25▲ 76,363726,396———726,396—Oct 29
Tranco —Radar —CrUX —Majestic 726,396Umbrella —checked Oct 29
21vybe.build760,940 avg · P25▲ 26,992760,940671,888——849,992—Oct 29
Tranco 671,888Radar —CrUX —Majestic 849,992Umbrella —checked Oct 29
22lucis.life766,475 avg · P25▲ 70,313766,475—top 1M—766,475—Oct 29
Tranco —Radar top 1MCrUX —Majestic 766,475Umbrella —checked Oct 29
23plexe.ai795,432 avg · P25▼ 12,112795,432———795,432—Oct 29
Tranco —Radar —CrUX —Majestic 795,432Umbrella —checked Oct 29
24bondapp.io849,863 avg · P25▲ 115,268849,863———849,863—Oct 29
Tranco —Radar —CrUX —Majestic 849,863Umbrella —checked Oct 29
25airweave.ai850,149 avg · P25▼ 114,934850,149———850,149—Oct 29
Tranco —Radar —CrUX —Majestic 850,149Umbrella —checked Oct 29
26usethirdchair.com928,270 avg · P25928,270———928,270—Oct 19
Tranco —Radar —CrUX —Majestic 928,270Umbrella —checked Oct 19
27bitboard.work931,716 avg · P25931,716———931,716—Oct 22
Tranco —Radar —CrUX —Majestic 931,716Umbrella —checked Oct 22
28kaizenautomation.com941,646 avg · P25941,646———941,646—Oct 19
Tranco —Radar —CrUX —Majestic 941,646Umbrella —checked Oct 19
29oncactus.com941,711 avg · P25941,711———941,711—Oct 19
Tranco —Radar —CrUX —Majestic 941,711Umbrella —checked Oct 19
30helix-db.com956,574 avg · P25▼ 17,808956,574———956,574—Oct 29
Tranco —Radar —CrUX —Majestic 956,574Umbrella —checked Oct 29
31ticketwallet.com966,257 avg · P25▼ 85,080966,257966,257top 1M———Oct 29
Tranco 966,257Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29
32kaelio.com979,116 avg · P25979,116———979,116—Oct 19
Tranco —Radar —CrUX —Majestic 979,116Umbrella —checked Oct 19
33cotool.ai980,735 avg · P25980,735———980,735—Oct 7
Tranco —Radar —CrUX —Majestic 980,735Umbrella —checked Oct 7
34adentris.com985,781 avg · P25985,781———985,781—Oct 19
Tranco —Radar —CrUX —Majestic 985,781Umbrella —checked Oct 19
35casco.com986,188 avg · P25▼ 63,335986,188———986,188—Oct 29
Tranco —Radar —CrUX —Majestic 986,188Umbrella —checked Oct 29
36theorem.dev987,944 avg · P25987,944———987,944—Oct 6
Tranco —Radar —CrUX —Majestic 987,944Umbrella —checked Oct 6
37getauctor.com994,133 avg · P25994,133—top 500k—994,133—Oct 29
Tranco —Radar top 500kCrUX —Majestic 994,133Umbrella —checked Oct 29
38getbluejay.ai996,891 avg · P25996,891———996,891—Oct 7
Tranco —Radar —CrUX —Majestic 996,891Umbrella —checked Oct 7
39acolite.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
40aegishealth.us— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
41alkali.engineering— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
42almond.bot— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
43aravolta.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
44atlog.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
45attunehq.comredirected— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never

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

46atum.works— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
47avallon.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
48aviro.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
49besimple.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
50bitpatrol.io— avg · P25, acquired———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
51bloom.diy— avg · P25——top 1M———Oct 29
Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29
52blueshoe.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
53boostrobotics.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
54bramantebio.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
55capacitive.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
56cartpole.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
57cascadespace.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
58cashew-labs.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
59chestnutmortgage.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
60chrt.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
61claimhealth.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
62clarm.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
63clidey.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
64codefour.us— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
65combinely.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
66crimson.law— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
67docketqa.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
68eloquentai.co— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
69flotthq.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
70foundation-industries.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
71freesolo.co— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
72frekil.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
73galenai.comgone— avg · P25, acquired———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never

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

74getanana.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
75getcohesiveai.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
76getden.io— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
77getkashikoi.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
78godela.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
79golf.dev— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
80habit.inc— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
81hemut.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
82irbc.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
83jeevyfabrication.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
84joinminerva.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
85kestral.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
86kirana-ai.com— avg · P25, acquired———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
87labric.co— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
88lapel.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
89leeroo.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
90linewise.io— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
91lumari.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
92mbodi.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
93mesmer.co— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
94mindfort.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
95mlop.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
96mobyanalytics.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
97morpho.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
98neoncoral.inc— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
99nimbic-ai.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
100nodienergy.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
101nomi.so— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
102novoflow.io— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
103opusense.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
104orchid.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
105paraquery.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
106parsewise.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
107partcl.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
108pelica.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
109photoniumoptics.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
110prisminference.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
111projectchiron.org— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
112propolis.techgone— avg · P25, acquired———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never

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

113qualgent.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
114ralo.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
115refresh.dev— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
116rimba.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
117robot-learning.co— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
118rungroundcontrol.comredirected— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never

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

119runrl.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
120scalarfield.io— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
121sixtyfour.ai— avg · P25——top 1M———Oct 29
Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29
122starsling.dev— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
123sureformhq.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
124sygaldry.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
125synthiolabs.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
126tegore.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
127text.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
128thetasoftware.comparked— avg · P25———————
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

129throxy.com— avg · P25——top 1M———Oct 29
Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29
130trapezehealth.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
131trybeluga.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
132trystratify.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
133units.school— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
134usesieve.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
135valuemate.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
136vassarrobotics.com— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
137vesence.com— avg · P25——top 1M———Oct 18
Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Oct 18
138waffle.ai— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
139withkairos.co— avg · P25———————
Tranco —Radar —CrUX —Majestic —Umbrella —checked never
140withmethod.ai— avg · P25———————
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

matches the domain; subdomains get the same numbers, so skip the www

History · every change, public

Oct 29 06:03sync with the YC sync, 12 sites changed
Oct 28 06:03sync with the YC sync, 10 sites changed
Oct 27 06:03sync with the YC sync, 13 sites changed
Oct 26 06:02sync with the YC sync, 3 sites changed
Oct 25 06:03sync with the YC sync, 5 sites changed
Oct 24 06:03sync with the YC sync, 6 sites changed
Oct 23 06:03sync with the YC sync, 11 sites shown

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