NameIDKey ID KeyProtocol URLStatusSizeScopeShardChromeAppleall_logs_listAndroidMozillaMicrosoftFetchStoreAuditSCTsSTHsmonitor.jsonhoneybee.jsonunderwater.jsoncrt.shSoftwareComments
25900001Keyrfc6962N/A3,061,463,1662025 removed rejected Yes
26900001Keyrfc6962N/A5,467,979,6322026usableusableusableusable usable Yes Yes
27900006Keyrfc6962N/A136,107,3982027usableusableusableusable usable Yes Yes
25900027Keystatic-ct-api747,047,7402025h2 denied rejectedrejected Yes
26400018Keystatic-ct-api519,846,1972026h1 denied usablerejected Yes
26900018Keystatic-ct-api485,053,4052026h2 denied usablerejected Yes
27400005Keystatic-ct-api40,096,5972027h1 denied usablerejected Yes
27900005Keystatic-ct-api15,6712027h2 denied usablerejected Yes
25400020Keystatic-ct-api20,612,4692025h1
25900023Keystatic-ct-api1,370,300,1582025h2
196rfc6962N/A
237Keyrfc6962N/A38,539 Yes
26400013Keyrfc6962N/A1,100,493,9682026h1 removed usablerejectedYes Yes
26900013Keyrfc6962N/A1,249,347,1492026h2usableusableusableusable usable Yes Yes
27400004Keyrfc6962N/A37,039,1962027h1usableusableusableusable usable Yes Yes
27900004Keyrfc6962N/A22,3212027h2usableusableusableusable usable Yes Yes
26400014Keyrfc6962N/A1,217,972,0302026h1 removed usablerejectedYes Yes
26900014Keyrfc6962N/A1,287,720,5902026h2usableusableusableusable usable Yes Yes
27400003Keyrfc6962N/A39,419,1322027h1usableusableusableusable usable Yes Yes
27900003Keyrfc6962N/A22,3252027h2usableusableusableusable usable Yes Yes
311Keystatic-ct-api251,607,8672026h1 Yes
312Keystatic-ct-api117,641,2232026h2 Yes
339Keystatic-ct-api1,3952027h1 Yes
340Keystatic-ct-api02027h2 Yes
26400017Keystatic-ct-api229,562,1222026h1 removed usablerejectedYes Yes
26900017Keystatic-ct-api209,533,9872026h2usableusableusableusable usable Yes Yes
27400002Keystatic-ct-api4,813,0882027h1usableusableusableusable usable Yes Yes
27900002Keystatic-ct-api20,0392027h2usableusableusableusable usable Yes Yes
26900028Keystatic-ct-api2,069,3962026h2
27400016Keystatic-ct-api16,505,9872027h1
27900017Keystatic-ct-api02027h2
347Keystatic-ct-api762026h2
348Keystatic-ct-api8532027h1
349Keystatic-ct-api02027h2
49Keyrfc6962N/A7,842,5372017 removed rejected Yes
50Keyrfc6962N/A427,533,7322018 removed rejected Yes
51Keyrfc6962N/A857,539,5802019 removed rejected Yes
52Keyrfc6962N/A961,984,0132020 removed rejected Yes
53Keyrfc6962N/A1,356,265,1302021 removed rejected Yes
85Keyrfc6962N/A1,602,372,2132022 removed rejected Yes
86Keyrfc6962N/A1,831,993,9312023 removed rejected Yes
24900004Keyrfc6962N/A2,465,849,7732024 removed rejected Yes
25400004Keyrfc6962N/A1,425,679,8942025h1 removed rejected Yes
25900004Keyrfc6962N/A2,511,508,3672025h2 removed rejected Yes
26400004Keyrfc6962N/A2,807,499,9192026h1 removed usablerejectedYes Yes
26900004Keyrfc6962N/A1,935,430,3782026h2usableusableusableusable usable Yes Yes
27400007Keyrfc6962N/A94,432,3502027h1usableusableusableusable usable Yes Yes
26400023Keystatic-ct-api185,549,6382026h1 Yes
26900024Keystatic-ct-api2,548,602,2732026h2 Yes
27400012Keystatic-ct-api89,042,7002027h1 Yes
27900015Keystatic-ct-api1,9392027h2 Yes
80Keyrfc6962N/A321,887,889 Yes
22Keyrfc6962N/A46,938,172 Yes
25900031Keystatic-ct-api02025h2 Yes
26900025Keystatic-ct-api543,045,7022026h2qualifiedqualifiedqualified qualified Yes
27400013Keystatic-ct-api2,6302027h1qualifiedqualifiedqualified qualified Yes
27900013Keystatic-ct-api2,6482027h2qualifiedqualifiedqualified qualified Yes
25900032Keystatic-ct-api02025h2 Yes
26900026Keystatic-ct-api542,983,5462026h2qualifiedqualifiedqualified qualified Yes
27400014Keystatic-ct-api2,6322027h1qualifiedqualifiedqualified qualified Yes
27900014Keystatic-ct-api2,6492027h2qualifiedqualifiedqualified qualified Yes
74Keyrfc6962N/A255,4722018 Yes
75Keyrfc6962N/A30,6202019 Yes
76Keyrfc6962N/A4,060,5862020 Yes
77Keyrfc6962N/A12,179,3132021 Yes
78Keyrfc6962N/A13,077,6252022 Yes
116Keyrfc6962N/A24,334,0802023 Yes
265Keyrfc6962N/A32,485,5022024 Yes
290Keyrfc6962N/A3,372,9892025h1 Yes
291Keyrfc6962N/A9,859,9232025h2 Yes
302Keyrfc6962N/A136,760,9762026h1 Yes
303Keyrfc6962N/A123,447,2932026h2 Yes
341Keyrfc6962N/A516,0022027h1 Yes
325Keystatic-ct-api1,432,089,5012025h1
326Keystatic-ct-api2,519,548,0902025h2 No
327Keystatic-ct-api2,865,285,9202026h1 No
29Keyrfc6962N/A36,974,641 Yes
31Keyrfc6962N/A1,571,071,800 No
31Keyrfc6962N/A1,571,071,800 Yes
69Keyrfc6962N/A366,5652018 removed rejected Yes
70Keyrfc6962N/A1,258,6132019 removed rejected Yes
71Keyrfc6962N/A1,001,858,8092020 removed rejected Yes
72Keyrfc6962N/A1,464,410,5392021 removed rejected Yes
73Keyrfc6962N/A1,912,832,9602022 removed rejected Yes
87Keyrfc6962N/A2,079,641,3852023 removed rejected Yes
24900005Keyrfc6962N/A2,685,090,8292024 removed rejected Yes
25400005Keyrfc6962N/A1,868,615,7122025h1 removed rejected Yes
25900005Keyrfc6962N/A2,623,434,7192025h2 removed rejected Yes
26400005Keyrfc6962N/A2,542,706,1532026h1 removed usablerejectedYes Yes
26900005Keyrfc6962N/A1,626,417,5662026h2usableusableusableusable usable Yes Yes
27400008Keyrfc6962N/A63,921,0712027h1usableusableusableusable usable Yes Yes
25900026Keystatic-ct-api643,784,2112025h2 removed rejectedrejected <643784211
26400019Keystatic-ct-api1,544,673,8092026h1 removed usablerejectedYes Yes
26900019Keystatic-ct-api676,766,9272026h2usableusableusableusable usable Yes Yes
27400006Keystatic-ct-api32,893,7862027h1usableusableusableusable usable Yes Yes
27900007Keystatic-ct-api13,9352027h2usableusableusableusable usable Yes Yes
25900030Keystatic-ct-api360,940,8292025h2 removed rejectedrejected <360940829
26400022Keystatic-ct-api1,467,008,4262026h1 removed usablerejectedYes Yes
26900023Keystatic-ct-api666,771,8052026h2usableusableusableusable usable Yes Yes
27400011Keystatic-ct-api32,601,7532027h1usableusableusableusable usable Yes Yes
27900011Keystatic-ct-api13,7032027h2usableusableusableusable usable Yes Yes
337Keystatic-ct-api3,1552025h2 No
333Keystatic-ct-api87,7872026h1 Yes
334Keystatic-ct-api108,119,3752026h2 Yes
335Keystatic-ct-api7,5792027h1 Yes
336Keystatic-ct-api7,5792027h2 Yes
320Keystatic-ct-api3,5032025h2 No
321Keystatic-ct-api91,6482026h1 Yes
322Keystatic-ct-api109,850,5062026h2 Yes
323Keystatic-ct-api8,0812027h1 Yes
324Keystatic-ct-api8,0752027h2 Yes
25900029Keystatic-ct-api154,630,816Custom removed rejected <154630816
26400021Keystatic-ct-api926,062,388Custom removed usablerejectedYes <926062388
26900021Keystatic-ct-api345,318,745Customusableusableusableusable usable Yes Yes
27400010Keystatic-ct-api95,712,344Customusableusableusableusable usable Yes Yes
27900010Keystatic-ct-api13,877Customusableusableusableusable usable Yes Yes
328Keystatic-ct-api119,566,316Custom No
329Keystatic-ct-api117,315,715Custom No
330Keystatic-ct-api1,273,231,022Custom No
331Keystatic-ct-api67,483,933Custom No
332Keystatic-ct-api0Custom No
25900028Keystatic-ct-api144,660,325Custom removed rejected <144660325
26400020Keystatic-ct-api926,067,188Custom removed usablerejectedYes <926067188
26900020Keystatic-ct-api326,122,049Customusableusableusableusable usable Yes Yes
27400009Keystatic-ct-api86,559,036Customusableusableusableusable usable Yes Yes
27900009Keystatic-ct-api13,892Customusableusableusableusable usable Yes Yes
346Keystatic-ct-api02026h1 denied
26900027Keystatic-ct-api02026h2 applying
27400015Keystatic-ct-api02027h1 applying
27900016Keystatic-ct-api02027h2 applying
309Keyrfc6962N/A3,504,171,398 Yes
26400015Keyrfc6962N/A2,054,351,7662026h1 removed usablerejectedYes Yes
26900015Keyrfc6962N/A1,261,397,9182026h2usableusableusableusable usable Yes Yes
27400000Keyrfc6962N/A87,987,1372027h1usableusableusableusable usable Yes Yes
27900000Keyrfc6962N/A25,6902027h2usableusableusableusable usable Yes Yes
26400016Keyrfc6962N/A2,002,576,6732026h1 removed usablerejectedYes Yes
26900016Keyrfc6962N/A1,511,041,7372026h2usableusableusableusable usable Yes Yes
27400001Keyrfc6962N/A91,379,9222027h1usableusableusableusable usable Yes Yes
27900001Keyrfc6962N/A25,1352027h2usableusableusableusable usable Yes Yes
307Keyrfc6962N/A6,1802026 Yes
308Keyrfc6962N/A4082027 Yes
266Keyrfc6962N/A
267Keyrfc6962N/A
268Keyrfc6962N/A
26900009Keyrfc6962N/A2,194,624,516Customusableusableusableusable usable Yes Yes
26900010Keyrfc6962N/A2,215,856,817Customusableusableusableusable usable Yes Yes
27900008Keyrfc6962N/A44,893,698Customusableusableusableusable usable Yes Yes
27900012Keystatic-ct-api43,838,666Customusablependingusableusable usable Yes Yes
25900024Keystatic-ct-api2,030,038,7222025h2 removed rejectedrejected <2030038722
26400007Keyrfc6962N/A65,240,5672026h1 removed <65240567rejectedYes Yes
26900007Keyrfc6962N/A57,634,0842026h2 <57634084 <57634084 <57634084 <57634084 usable Yes Yes
26400008Keyrfc6962N/A88,744,2052026h1 removed <88744201rejectedYes Yes
26900008Keyrfc6962N/A68,732,7932026h2 <68732791 <68732791 <68732791 <68732791 usable Yes Yes
97Keyrfc6962N/A60,7942020 denied <60794
98Keyrfc6962N/A97,3892021 denied <97389
99Keyrfc6962N/A97,3432022 denied <97344
100Keyrfc6962N/A3572023 denied <357
106Keyrfc6962N/A1,8212020 denied No
107Keyrfc6962N/A1,8192021 denied No
108Keyrfc6962N/A1,8202022 denied No
109Keyrfc6962N/A1,8232023 denied No
39Keyrfc6962N/A denied <324
32Keyrfc6962N/A4,531,208 <4531208
315Keyrfc6962N/ACustomretiredretiredretired retired Yes
19900000Keyrfc6962N/ACustomretiredretiredretired retired Yes
26Keyrfc6962N/A1,721,095 removed rejected <1721095
342Keyrfc6962N/A
343Keyrfc6962N/A
79Keyrfc6962N/A212,340,249
54Keyrfc6962N/A20,468,3682017 denied rejected <20468368
55Keyrfc6962N/A265,514,2602018 removed rejected <265514260
56Keyrfc6962N/A493,395,1082019 removed rejected <493395108
57Keyrfc6962N/A368,246,7242020 removed rejected <368246724
58Keyrfc6962N/A408,906,2552021 removed rejected <408906255
81Keyrfc6962N/A805,190,1702022 removed rejected <805190170
82Keyrfc6962N/A1,328,497,7062023 removed rejected <1328492763
24900001Keyrfc6962N/A962,089,7072024 removed rejected <962089707
25900025Keystatic-ct-api72,216,2572025h2 denied <13853696
9Keyrfc6962N/A58,732 removed rejected <51925
197rfc6962N/A
3Keyrfc6962N/A24,899,054 removed rejected <24899054
25Keyrfc6962N/A90,271,162 removed rejected <90271162
64Keyrfc6962N/A102,686,882Custom removed rejected <102686882
65Keyrfc6962N/A428,7882019 removed rejected <428788
66Keyrfc6962N/A28,387,3322020 removed rejected <28387332
67Keyrfc6962N/A99,117,5002021 removed rejected <99117500
68Keyrfc6962N/A162,451,7672022 removed rejected <162451767
84Keyrfc6962N/A287,166,8702023 removed rejected <287166870
248Keyrfc6962N/A65,738,9692024 removed rejected <65738969
25900002Keyrfc6962N/A881,954,9852025 removed rejected <881954985
24400013Keyrfc6962N/A34,637Custom removed rejected <34637
24900013Keyrfc6962N/A30,208,759Custom removed rejected <30208759
25400013Keyrfc6962N/A275,557,396Custom removed rejected <275557396
25900013Keyrfc6962N/A1,012,539,029Custom removed rejected <1012539029
24400014Keyrfc6962N/A50,541Custom removed rejected <50541
24900014Keyrfc6962N/A30,255,475Custom removed rejected <30255475
25400014Keyrfc6962N/A276,121,828Custom removed rejected <276121828
25900014Keyrfc6962N/A1,016,240,650Custom removed rejected <1016240650
59Keyrfc6962N/A90,785,920Custom removed rejected <90785920
60Keyrfc6962N/A293,281,8692019 removed rejected <293281869
61Keyrfc6962N/A207,205,7552020 removed rejected <207205755
62Keyrfc6962N/A305,279,0322021 removed rejected <305279032
63Keyrfc6962N/A66,539,8072022 removed rejected <66539807
111Keyrfc6962N/A874,565,2012022 removed rejected <873651323
83Keyrfc6962N/A106,052,0982023 removed rejected <106052098
24900003Keyrfc6962N/A1,499,609,0442024 removed rejected <1499609044
25900003Keyrfc6962N/A1,967,320,8882025 removed rejected <1967320888
47Keyrfc6962N/A42,134Custom denied rejected <42134
48Keyrfc6962N/A40,141Custom denied rejected <40141
172Keyrfc6962N/A
35Keyrfc6962N/A4,329 denied <4327
34Keyrfc6962N/A1,721 denied <1721
310Keystatic-ct-api160,118,7352025h2 No
2Keyrfc6962N/A46,466,472 removed rejected <46466472
16Keyrfc6962N/A762,431,086 removed rejected <762431086
1Keyrfc6962N/A1,077,336,997 removed rejected <1077336997
4Keyrfc6962N/A1,117,686,082 removed rejected <1117686082
17Keyrfc6962N/A312,996,450 removed rejected <312996450
338Keystatic-ct-api22026h2
26900022Keystatic-ct-api4,765,4912026h2 denied rejected <4765491
25900017Keystatic-ct-api41,312,4942025 <41312494
24900016Keyrfc6962N/A61,2472024
5Keyrfc6962N/A163,222 removed rejected <163222
13Keyrfc6962N/A4,494 denied <4460
199rfc6962N/A
36Keyrfc6962N/A27,746,475 <27746475
198rfc6962N/A
88Keyrfc6962N/A559,850,4412019ish removed rejected <559850441
89Keyrfc6962N/A566,652,3102020ish removed rejected <566652310
90Keyrfc6962N/A365,301,1342021ish removed rejected <365301134
91Keyrfc6962N/A494,549,3332022ish removed rejected <494549333
92Keyrfc6962N/A1,074,253,1522023ish removed rejected <1074253152
24400006Keyrfc6962N/A720,133,250Custom removed rejected <720133250
24900006Keyrfc6962N/A671,590,261Custom removed rejected <671590261
25400006Keyrfc6962N/A990,630,759Custom removed rejected <990630759
25900006Keyrfc6962N/A1,958,525,022Custom removed rejected <1958525022
26400006Keyrfc6962N/A598,614,696Customretired <598614696retiredretired retired Yes <598614696
26900006Keyrfc6962N/A130,815,692Customretired <130815692retiredretired retired Yes <130815692
195rfc6962N/A
259Keyrfc6962N/A604,742,413Custom No
260Keyrfc6962N/A152,519,281Custom No
286Keyrfc6962N/A209,861,512Custom No
287Keyrfc6962N/A1,033,229,182Custom No
288Keyrfc6962N/A1,252,317,237Custom No
344Keyrfc6962N/ACustom No
207rfc6962N/A
24400011Keysunlight491,339,016Custom
24900011Keysunlight230,021,343Custom
25400011Keysunlight0Custom
25400018Keystatic-ct-api1,918,567,715Custom <1918567715
25900011Keysunlight0Custom
25900018Keystatic-ct-api840,154,360Custom <840155904
101Keyrfc6962N/A666,628,4912019ish No
102Keyrfc6962N/A1,122,767,5132020ish No
103Keyrfc6962N/A628,500,5832021ish No
104Keyrfc6962N/A316,9402022ish No
105Keyrfc6962N/A198,6592023ish No
295Keysunlight586,559,939Custom
296Keysunlight265,204,440Custom
297Keysunlight13,192Custom
304Keystatic-ct-api2,204,287,479Custom No
298Keysunlight1Custom
305Keystatic-ct-api1,193,574,171Custom No
24400012Keysunlight491,510,353Custom
24900012Keysunlight230,028,344Custom
25400012Keysunlight0Custom
25400019Keystatic-ct-api1,933,793,508Custom <1933793510
25900012Keysunlight0Custom
25900019Keystatic-ct-api3,294,459Custom <3294459
25900020Keystatic-ct-api828,858,645Custom <828869054
314Keyrfc6962N/A212,934,771Custom No
313Keyrfc6962N/A22,025,162Custom
317Keyrfc6962N/A
316Keyrfc6962N/A
318Keyrfc6962N/A
319Keystatic-ct-api
41Keyrfc6962N/A No
30Keyrfc6962N/A6,259,999 <6258493
292Keysunlight155,480,604
293Keysunlight2
294Keysunlight1
21Keyrfc6962N/A1,745 removed rejected <1745
299Keystatic-ct-api548,340,6092024h2 <6098
300Keystatic-ct-api2,193,755,5462025h1 <6161
301Keystatic-ct-api394,286,2302025h2 <6468
20Keyrfc6962N/A425,853,897 <425853897
25900021Keyrfc6962N/A1,227,732,3102025h2 removed rejected <1227732310
27Keyrfc6962N/A798,400,519 removed rejected <798400519
278Keyrfc6962N/A32,062,9812024h1 removed rejected <32062981
24400007Keyrfc6962N/A12,094,3432024h1 removed rejected <12094343
24900007Keyrfc6962N/A306,636,6412024h2 removed rejected <306636641
25400007Keyrfc6962N/A512,368,0822025h1 removed rejected <512368082
25900007Keyrfc6962N/A865,235,4512025h2 removed rejected <865235451
100008Keyrfc6962N/A546,099,887 removed rejected <546099887
24400008Keyrfc6962N/A188,922,9782024h1 removed rejected <188922978
24900008Keyrfc6962N/A279,774,1572024h2 removed rejected <279774157
25400008Keyrfc6962N/A501,893,4992025h1 removed rejected <501893499
25900008Keyrfc6962N/A1,213,760,8482025h2 removed rejected <1213760848
25900022Keyrfc6962N/A1,254,180,7092025h2 removed rejected <1254180709
306Keyrfc6962N/A2,4302025 No
33Keyrfc6962N/A4 denied <4
42Keyrfc6962N/A denied <10
43Keyrfc6962N/A removed No
10Keyrfc6962N/A359,366 removed rejected <359366
6Keyrfc6962N/A9,426,803 removed rejected <9426803
14Keyrfc6962N/A43,310 <43310
24Keyrfc6962N/A1,403,918 removed rejected <1403918
7Keyrfc6962N/A1,673,300 removed rejected <1673300
93Keyrfc6962N/A4,321,1602020 removed rejected <4321160
94Keyrfc6962N/A666,2462021 removed rejected <666246
95Keyrfc6962N/A1,548,1832022 removed rejected <1548183
96Keyrfc6962N/A3,356,5362023 removed rejected <3356536
250Keyrfc6962N/A7,0392024 denied <7039
110Keyrfc6962N/A87,8132021 removed <87813
24900009Keyrfc6962N/A76,472,6792024 removed rejected <76472679
25900009Keyrfc6962N/A422,712,9022025 removed rejected <422712902
25900010Keyrfc6962N/A484,346,1972025 removed rejected <484346197
117Keyrfc6962N/A141,577Custom denied <141577
150rfc6962N/A
151rfc6962N/A
152rfc6962N/A
153rfc6962N/A
154rfc6962N/A
155rfc6962N/A
156rfc6962N/A
160rfc6962N/A
239rfc6962N/A
240rfc6962N/A
241rfc6962N/A
242rfc6962N/A
243rfc6962N/A
345rfc6962N/A
8Keyrfc6962N/A99,988 removed rejected <99988
23Keyrfc6962N/A111,554,066 removed rejected <111554066
15Keyrfc6962N/A9,214,615 removed rejected <9214615
37Keyrfc6962N/A954 denied <954
38Keyrfc6962N/A2 <2
44Keyrfc6962N/A removed <41861
45Keyrfc6962N/A5 denied <5
46Keyrfc6962N/A2 <2

Log Scopes

Trusted
The log is intended for WebPKI certificates trusted by TLS clients. (Note: although the log accepts trusted certificates, the log itself may be intended for testing - see comments.)
Untrusted
The log is intended for WebPKI certificates that are not presently trusted by TLS clients, but may be trusted in the future, or were trusted in the past.
Expired
The log is intended for expired WebPKI certificates.
Testing
The log is intended for untrusted WebPKI test certificates.
RPKI
The log is intended for RPKI certificates.
BIMI
The log is intended for BIMI certificates.
SM2
The log is intended for certificates using SM2 keys.

Log Software

Trillian (67)
Google's second-generation RFC6962 implementation (Apache-2)
Sunlight (44)
Filippo Valsorda's static-ct-api implementation, with an emphasis on ease-of-operation and robustness (ISC)
TesseraCT (26)
Google TrustFabric's static-ct-api implementation (Apache-2)
Azul (7)
Cloudflare's static-ct-api implementation (BSD, ISC, Apache-2)
Trillian-CF (3)
Trillian, with Cloudflare patches (Proprietary)
DigiCert-HP (0)
DigiCert's modern high performance log implementation (Proprietary)
SuperDuper (0)
Google's original open source log implementation (Apache-2)
DigiCert (0)
DigiCert's original log implementation (Proprietary)
Google (0)
Google's original closed source log implementation (Proprietary)
Catlfish (0)
Experimental log implementation by NORDUNet (BSD)
sslwatcher (0)
Defunct log implementation written in Ruby (GPLv3)
Itko (0)
Implements both RFC 6962 and static CT API (MIT)

Log Status

Active
The log is up and running normally.
Frozen
The log is up but is no longer accepting new entries.
Dead
The log is no longer running.

Red stripes indicate that the log has forked (signed inconsistent STHs / presented a split view).

Chrome Log State

This column shows the state of the log in Chrome. Click on the state to open the log's inclusion bug.

If the log is listed in Chrome's log_list.json, its state is shown in this column. See Certificate Transparency Log Lifecycle for information about the different states.

If the log is not listed in log_list.json, it may have one of the following pseudo-states:

applying
The log has applied for inclusion in Chrome.
removed
The log was previously listed in log_list.json but has been removed.
denied
The log's application for inclusion was denied or withdrawn.

Mozilla Log State

This column shows the state of the log in Mozilla. The state is determined by parsing CTKnownLogs.h in the Firefox source code. The possible states are:

qualified
The log has been listed as Admissible in CTKnownLogs.h for less than 70 days
usable
The log has been listed as Admissible in CTKnownLogs.h for 70 or more days
retired
The log is listed as Retired in CTKnownLogs.h.

Microsoft Log State

This column shows the state of the log on Microsoft platforms. The state is determined by parsing authroot.stl, which lists CT log public keys in an extension with OID 1.3.6.1.4.1.311.10.3.52. If the log's public key is listed in authrootstl.cab, this column says "Yes".

JSON log list of all logs

CC0

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