/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.

208 of 4,698 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

W23 · 208 sites · ← all sites

208 live · 27 parked or gone — show all

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

1resend.com63,883 avg · W23▲ 6,76363,88315,797top 20ktop 50k6,782169,070Oct 29

Tranco 15,797Radar top 20kCrUX top 50kMajestic 6,782Umbrella 169,070checked Oct 29

2usepylon.com74,654 avg · W23▲ 44974,65417,778top 10k—154,43751,748Oct 29

Tranco 17,778Radar top 10kCrUX —Majestic 154,437Umbrella 51,748checked Oct 29

3vellum.ai104,266 avg · W23▼ 1,558104,266158,991top 1Mtop 1M49,540—Oct 29

Tranco 158,991Radar top 1MCrUX top 1MMajestic 49,540Umbrella —checked Oct 29

4onetext.com113,628 avg · W23▲ 7,202113,628107,191top 100k——120,065Oct 29

Tranco 107,191Radar top 100kCrUX —Majestic —Umbrella 120,065checked Oct 29

5langfuse.com137,092 avg · W23, acquired▲ 1,616137,09248,552top 50ktop 1M28,829333,894Oct 29

Tranco 48,552Radar top 50kCrUX top 1MMajestic 28,829Umbrella 333,894checked Oct 29

6extend.ai155,086 avg · W23▲ 716155,08667,968top 1M—242,204—Oct 29

Tranco 67,968Radar top 1MCrUX —Majestic 242,204Umbrella —checked Oct 29

7helicone.ai161,966 avg · W23, acquired▲ 25,918161,966246,780top 200k—77,151—Oct 29

Tranco 246,780Radar top 200kCrUX —Majestic 77,151Umbrella —checked Oct 29

8litellm.ai196,095 avg · W23▼ 1,751196,09589,996top 200ktop 1M21,779476,509Oct 29

Tranco 89,996Radar top 200kCrUX top 1MMajestic 21,779Umbrella 476,509checked Oct 29

9superkalam.com198,588 avg · W23▼ 2,720198,588198,588top 1Mtop 100k——Oct 29

Tranco 198,588Radar top 1MCrUX top 100kMajestic —Umbrella —checked Oct 29

10yuma.ai199,353 avg · W23▲ 15,620199,35377,281top 50k—274,644246,135Oct 29

Tranco 77,281Radar top 50kCrUX —Majestic 274,644Umbrella 246,135checked Oct 29

11type.ai203,391 avg · W23▲ 9,905203,391242,280top 1Mtop 500k164,502—Oct 29

Tranco 242,280Radar top 1MCrUX top 500kMajestic 164,502Umbrella —checked Oct 29

12clueso.io226,675 avg · W23▼ 7,528226,675189,556top 100k—263,794—Oct 29

Tranco 189,556Radar top 100kCrUX —Majestic 263,794Umbrella —checked Oct 29

13magicpatterns.com228,411 avg · W23▲ 23,141228,411300,643top 500ktop 1M156,179—Oct 29

Tranco 300,643Radar top 500kCrUX top 1MMajestic 156,179Umbrella —checked Oct 29

14depot.dev231,909 avg · W23▲ 32,494231,909300,125top 200k—163,693—Oct 29

Tranco 300,125Radar top 200kCrUX —Majestic 163,693Umbrella —checked Oct 29

15middleware.io239,543 avg · W23▼ 10,615239,543167,072top 200k—111,661439,895Oct 29

Tranco 167,072Radar top 200kCrUX —Majestic 111,661Umbrella 439,895checked Oct 29

16vector.co254,037 avg · W23▼ 146254,03733,446top 20k—684,48844,178Oct 29

Tranco 33,446Radar top 20kCrUX —Majestic 684,488Umbrella 44,178checked Oct 29

17reflex.dev269,199 avg · W23▲ 4,320269,199395,099top 1M—143,298—Oct 29

Tranco 395,099Radar top 1MCrUX —Majestic 143,298Umbrella —checked Oct 29

18nango.dev273,612 avg · W23▲ 16,363273,612383,914top 500k—163,309—Oct 29

Tranco 383,914Radar top 500kCrUX —Majestic 163,309Umbrella —checked Oct 29

19numeral.com280,233 avg · W23▲ 39,341280,233321,618top 1M—173,024346,056Oct 29

Tranco 321,618Radar top 1MCrUX —Majestic 173,024Umbrella 346,056checked Oct 29

20warp.co301,219 avg · W23▲ 9,478301,219———301,219—Oct 29

Tranco —Radar —CrUX —Majestic 301,219Umbrella —checked Oct 29

21escape.tech306,359 avg · W23▲ 15,068306,359467,679——145,039—Oct 29

Tranco 467,679Radar —CrUX —Majestic 145,039Umbrella —checked Oct 29

22traceloop.com328,816 avg · W23, acquired▼ 3,671328,816—top 1M—328,816—Oct 29

Tranco —Radar top 1MCrUX —Majestic 328,816Umbrella —checked Oct 29

23cloudchipr.com329,929 avg · W23▲ 39,012329,929———329,929—Oct 29

Tranco —Radar —CrUX —Majestic 329,929Umbrella —checked Oct 29

24infisical.com333,156 avg · W23▲ 9,123333,15680,686top 50k—63,815854,968Oct 29

Tranco 80,686Radar top 50kCrUX —Majestic 63,815Umbrella 854,968checked Oct 29

25buildwithfern.com349,306 avg · W23, acquired▼ 3,497349,306209,949top 500k—190,723647,246Oct 29

Tranco 209,949Radar top 500kCrUX —Majestic 190,723Umbrella 647,246checked Oct 29

26frigade.com352,542 avg · W23▲ 19,343352,542240,380top 200k—530,250286,996Oct 29

Tranco 240,380Radar top 200kCrUX —Majestic 530,250Umbrella 286,996checked Oct 29

27flower.ai362,631 avg · W23▲ 53,874362,631483,896top 1M—241,365—Oct 29

Tranco 483,896Radar top 1MCrUX —Majestic 241,365Umbrella —checked Oct 29

28commonpaper.com376,719 avg · W23▼ 26,345376,719———376,719—Oct 29

Tranco —Radar —CrUX —Majestic 376,719Umbrella —checked Oct 29

29rivet.dev381,551 avg · W23▼ 37,336381,551—top 1M—381,551—Oct 29

Tranco —Radar top 1MCrUX —Majestic 381,551Umbrella —checked Oct 29

30boundaryml.com382,873 avg · W23▼ 729382,873———382,873—Oct 29

Tranco —Radar —CrUX —Majestic 382,873Umbrella —checked Oct 29

31trigger.dev389,894 avg · W23▼ 15,049389,894176,984top 200k—107,543885,156Oct 29

Tranco 176,984Radar top 200kCrUX —Majestic 107,543Umbrella 885,156checked Oct 29

32cosine.sh401,812 avg · W23▲ 32,164401,812638,661——164,963—Oct 29

Tranco 638,661Radar —CrUX —Majestic 164,963Umbrella —checked Oct 29

33outerbase.com408,737 avg · W23, acquired▲ 27,672408,737———408,737—Oct 29

Tranco —Radar —CrUX —Majestic 408,737Umbrella —checked Oct 29

34stackai.com413,998 avg · W23, acquired▼ 46,275413,998235,755top 500ktop 1M109,315896,924Oct 29

Tranco 235,755Radar top 500kCrUX top 1MMajestic 109,315Umbrella 896,924checked Oct 29

35inkeep.com418,807 avg · W23▼ 4,158418,807333,551top 500k—343,051579,818Oct 29

Tranco 333,551Radar top 500kCrUX —Majestic 343,051Umbrella 579,818checked Oct 29

36credal.ai434,721 avg · W23▲ 3,584434,721—top 500k—434,721—Oct 29

Tranco —Radar top 500kCrUX —Majestic 434,721Umbrella —checked Oct 29

37vitalize.care444,649 avg · W23▲ 45,439444,649444,649top 1M———Oct 29

Tranco 444,649Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29

38tennr.com445,218 avg · W23▼ 39,828445,218290,574top 500k—486,263558,817Oct 29

Tranco 290,574Radar top 500kCrUX —Majestic 486,263Umbrella 558,817checked Oct 29

39univerbal.app445,994 avg · W23▼ 29,505445,994———445,994—Oct 29

Tranco —Radar —CrUX —Majestic 445,994Umbrella —checked Oct 29

40unify.ai464,822 avg · W23▲ 61,603464,822526,230top 1M—403,413—Oct 29

Tranco 526,230Radar top 1MCrUX —Majestic 403,413Umbrella —checked Oct 29

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