Y Combinator Startups

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

55 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

W14 · 55 sites · ← all sites

55 sites, including 10 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

flexport.com65,472 avg · W14▲ 6,25965,4726,985top 20ktop 1M28,382161,049Oct 29

Tranco 6,985Radar top 20kCrUX top 1MMajestic 28,382Umbrella 161,049checked Oct 29

algolia.com66,255 avg · W14▼ 5066,25517,269top 20ktop 500k7,207174,290Oct 29

Tranco 17,269Radar top 20kCrUX top 500kMajestic 7,207Umbrella 174,290checked Oct 29

getweave.com89,585 avg · W14, public▲ 85789,58532,393top 20ktop 500k39,667196,695Oct 29

Tranco 32,393Radar top 20kCrUX top 500kMajestic 39,667Umbrella 196,695checked Oct 29

guesty.com93,323 avg · W14▲ 8,84093,32330,220top 50ktop 500k59,341190,409Oct 29

Tranco 30,220Radar top 50kCrUX top 500kMajestic 59,341Umbrella 190,409checked Oct 29

chargehound.com95,168 avg · W14, acquired▼ 4,15895,168————95,168Oct 27

Tranco —Radar —CrUX —Majestic —Umbrella 95,168checked Oct 27

pushbullet.com106,478 avg · W14▲ 22,881106,47849,063top 50ktop 500k38,142232,230Oct 29

Tranco 49,063Radar top 50kCrUX top 500kMajestic 38,142Umbrella 232,230checked Oct 29

getcruise.com123,860 avg · W14, acquired▲ 20,541123,860194,434——53,286—Oct 29

Tranco 194,434Radar —CrUX —Majestic 53,286Umbrella —checked Oct 29

cambly.com141,325 avg · W14▲ 1,799141,32537,778top 50ktop 500k43,388342,810Oct 29

Tranco 37,778Radar top 50kCrUX top 500kMajestic 43,388Umbrella 342,810checked Oct 29

devcycle.com164,787 avg · W14, acquired▼ 9,917164,78714,875top 10k—458,98420,501Oct 29

Tranco 14,875Radar top 10kCrUX —Majestic 458,984Umbrella 20,501checked Oct 29

dyspatch.io194,212 avg · W14▼ 17,931194,212130,436top 200k—339,766112,433Oct 29

Tranco 130,436Radar top 200kCrUX —Majestic 339,766Umbrella 112,433checked Oct 29

airhelp.com210,353 avg · W14▼ 2,590210,35354,615top 200ktop 500k18,787557,656Oct 29

Tranco 54,615Radar top 200kCrUX top 500kMajestic 18,787Umbrella 557,656checked Oct 29

truevault.com230,534 avg · W14▼ 6,003230,534210,582top 200k—301,377179,644Oct 29

Tranco 210,582Radar top 200kCrUX —Majestic 301,377Umbrella 179,644checked Oct 29

snapdocs.com237,626 avg · W14▲ 4,831237,62638,328top 200ktop 1M267,794406,755Oct 29

Tranco 38,328Radar top 200kCrUX top 1MMajestic 267,794Umbrella 406,755checked Oct 29

bellabeat.com247,869 avg · W14▲ 14,594247,869349,693——146,044—Oct 29

Tranco 349,693Radar —CrUX —Majestic 146,044Umbrella —checked Oct 29

ambition.com281,728 avg · W14▲ 19,458281,728236,711top 500k—326,744—Oct 29

Tranco 236,711Radar top 500kCrUX —Majestic 326,744Umbrella —checked Oct 29

codecombat.com292,883 avg · W14▲ 17,518292,88394,603top 500ktop 500k26,860757,187Oct 29

Tranco 94,603Radar top 500kCrUX top 500kMajestic 26,860Umbrella 757,187checked Oct 29

mixerbox.com347,277 avg · W14▼ 10,707347,27760,211top 50k—665,881315,739Oct 29

Tranco 60,211Radar top 50kCrUX —Majestic 665,881Umbrella 315,739checked Oct 29

aptdeco.com368,906 avg · W14▲ 22,818368,906123,143top 100ktop 500k152,920830,656Oct 29

Tranco 123,143Radar top 100kCrUX top 500kMajestic 152,920Umbrella 830,656checked Oct 29

unbabel.com385,144 avg · W14, acquired▼ 20,429385,144115,357top 100ktop 1M51,316988,759Oct 29

Tranco 115,357Radar top 100kCrUX top 1MMajestic 51,316Umbrella 988,759checked Oct 29

wit.ai405,264 avg · W14, acquired▲ 65,098405,264155,331top 200k—78,038982,423Oct 29

Tranco 155,331Radar top 200kCrUX —Majestic 78,038Umbrella 982,423checked Oct 29

gobble.com470,810 avg · W14, acquired▲ 9,620470,810662,966——278,654—Oct 29

Tranco 662,966Radar —CrUX —Majestic 278,654Umbrella —checked Oct 29

memebox.com473,998 avg · W14▲ 13,271473,998681,973——266,023—Oct 29

Tranco 681,973Radar —CrUX —Majestic 266,023Umbrella —checked Oct 29

kimonolabs.com536,415 avg · W14, acquired▲ 173,488536,415600,069——472,761—Oct 29

Tranco 600,069Radar —CrUX —Majestic 472,761Umbrella —checked Oct 29

zinc.com549,928 avg · W14▲ 286,591549,928———549,928—Oct 29

Tranco —Radar —CrUX —Majestic 549,928Umbrella —checked Oct 29

sketchdeck.com552,358 avg · W14, acquired▲ 43,089552,358———552,358—Oct 29

Tranco —Radar —CrUX —Majestic 552,358Umbrella —checked Oct 29

abacus.comredirected596,463 avg · W14, acquired▲ 57,279596,463522,672top 1M—549,406717,311Oct 29

Tranco 522,672Radar top 1MCrUX —Majestic 549,406Umbrella 717,311checked Oct 29

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

shoobs.com639,791 avg · W14▼ 87,568639,791—top 1M—639,791—Oct 29

Tranco —Radar top 1MCrUX —Majestic 639,791Umbrella —checked Oct 29

1degree.org651,087 avg · W14▲ 15,023651,087———651,087—Oct 29

Tranco —Radar —CrUX —Majestic 651,087Umbrella —checked Oct 29

caremessage.org677,415 avg · W14▲ 160,564677,415———677,415—Oct 29

Tranco —Radar —CrUX —Majestic 677,415Umbrella —checked Oct 29

axoni.com714,038 avg · W14, acquired▲ 262,522714,038———714,038—Oct 29

Tranco —Radar —CrUX —Majestic 714,038Umbrella —checked Oct 29

pipelinedb.comredirected716,443 avg · W14, acquired▼ 130,717716,443———716,443—Oct 29

Tranco —Radar —CrUX —Majestic 716,443Umbrella —checked Oct 29

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

zidisha.org728,104 avg · W14▼ 5,238728,104929,350top 1M—526,858—Oct 29

Tranco 929,350Radar top 1MCrUX —Majestic 526,858Umbrella —checked Oct 29

opencurriculum.org813,389 avg · W14▼ 101,686813,389———813,389—Oct 29

Tranco —Radar —CrUX —Majestic 813,389Umbrella —checked Oct 29

noorahealth.org823,496 avg · W14▲ 76,384823,496———823,496—Oct 29

Tranco —Radar —CrUX —Majestic 823,496Umbrella —checked Oct 29

povio.com874,321 avg · W14874,321———874,321—Oct 15

Tranco —Radar —CrUX —Majestic 874,321Umbrella —checked Oct 15

eventjoy.com903,651 avg · W14, acquired903,651———903,651—Oct 15

Tranco —Radar —CrUX —Majestic 903,651Umbrella —checked Oct 15

getkuna.com911,810 avg · W14, acquired▼ 35,980911,810———911,810—Oct 29

Tranco —Radar —CrUX —Majestic 911,810Umbrella —checked Oct 29

gbatteries.com937,832 avg · W14937,832———937,832—Oct 19

Tranco —Radar —CrUX —Majestic 937,832Umbrella —checked Oct 19

rocketrip.comredirected979,506 avg · W14, acquired▼ 71,347979,506———979,506—Oct 29

Tranco —Radar —CrUX —Majestic 979,506Umbrella —checked Oct 29

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

liftigniter.comredirected992,846 avg · W14, acquired▼ 209,966992,846———992,846—Oct 27

Tranco —Radar —CrUX —Majestic 992,846Umbrella —checked Oct 27

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

42technologies.com— avg · W14——top 1M———Oct 29

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29

avametric.comgone— avg · W14, acquired———————

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

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

boostable.comparked— avg · W14, acquired——top 1M———Sep 13

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

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

codenow.org— avg · W14———————

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

emailio.comgone— avg · W14———————

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

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

show 20 more

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

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.