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DEfO ECH Domain Name Check

The (server-side) script on this page checks whether an HTTPS resource record (RR) is published for a given DNS domain and port (default port being 443), if so, whether there is an ECHConfigList published as part of that, and whether or not ECH works with the web server at that name. That's done using the `kdig` command on the server-side to check for HTTPS RRs, and `curl` with our experimental ECH support enabled to test if ECH works. (Note that `curl` supports more ECH options than browsers, but does not support automated re-tries via `retry-config` so the behaviour reported here will not quite match what browsers exhibit.)

DNS name and port (default: 443) name: port:

Recent services tested, that have some HTTPS RR

NumDateDomainECH StatusHas ECH?HTTPS RR
34842025-07-08T19:32:14+00:00droidwin.com111 . alpn="h3,h2" ipv4hint=104.26.0.88,104.26.1.88,172.67.72.197 ech=AEX+DQBBjwAgACANGO9Hm+RBNBAb2P+sErXtMnGVWKpX6rbsYam/FXmzPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:20::681a:58,2606:4700:20::681a:158,2606:4700:20::ac43:48c5
34832025-07-08T17:48:06+00:00a7.profarm5.top001 . alpn="h2" ipv4hint=104.26.4.120,104.26.5.120,172.67.69.203 ipv6hint=2606:4700:20::681a:478,2606:4700:20::681a:578,2606:4700:20::ac43:45cb
34822025-07-07T22:28:43+00:00xhamster.com001 . alpn="h3,h2" ipv4hint=104.18.146.40,104.18.147.40 ipv6hint=2606:4700::6812:9228,2606:4700::6812:9328
34812025-07-07T22:28:29+00:00google.com001 . alpn="h2,h3"
34802025-07-07T21:06:11+00:00buscar-id.support001 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34792025-07-07T21:03:44+00:00app-sign.info111 . alpn="h3,h2" ipv4hint=104.21.39.104,172.67.144.120 ech=AEX+DQBBegAgACBLxkwMLgFCF4su/g8lAqqKxTFzl+nRaMOiTW2h+Zi+JwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9078,2606:4700:3034::6815:2768
34782025-07-07T20:39:04+00:000xy.link111 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ech=AEX+DQBBegAgACBLxkwMLgFCF4su/g8lAqqKxTFzl+nRaMOiTW2h+Zi+JwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34772025-07-07T16:27:13+00:00login.aol.com00cname
34762025-07-07T16:26:22+00:00login.yahoo.com00cname
34752025-07-07T15:57:02+00:00int3lligent.com111 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ech=AEX+DQBBCgAgACDBBUE+pQIVVJdh8KyDzmxVkxc2BnsQ9ms2H2w32KGdewAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34742025-07-07T13:34:36+00:00monsteremporium.com111 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBZAAgACBZNQ3Bbs8s5OPLhxUyw9fxAQ/o8Imt8em8fWiaeJ38bgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34732025-07-07T12:17:00+00:00alfaonline.servicecdn.ru00cname
34722025-07-07T12:15:59+00:00opengl.org111 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBmgAgACA5m1CKmORqOhFT/v8EWIqgNuxP3soGZbkgW8VnuI4ZGwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34712025-07-07T12:05:23+00:00basnoslovno.ru001 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34702025-07-07T11:56:48+00:00basnoslovno.ru001 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34692025-07-07T11:43:45+00:00basnoslovno.ru001 . alpn="h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34682025-07-07T11:28:05+00:00basnoslovno.ru001 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34672025-07-07T11:02:28+00:00basnoslovno.ru001 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34662025-07-06T17:18:30+00:00zcasinos.net111 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBB0wAgACDKsSteh6tX62Ez41UX4GM4sQaY0mfP7oNsYuxKeTi8MQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34652025-07-06T12:22:47+00:00test.defo.ie111 . ech=AEb+DQBCqQAgACBlm7cfDx/gKuUAwRTe+Y9MExbIyuLpLcgTORIdi69uewAEAAEAAQATcHVibGljLnRlc3QuZGVmby5pZQAA
34642025-07-06T11:52:47+00:00www.ubuntumint.com111 . alpn="h3,h2" ipv4hint=104.21.94.212,172.67.140.81 ech=AEX+DQBB6wAgACA6pSHF4Zb76eSKOBpBfjq2P3CeoqpXYCtNtYroQ2TPBAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:5ed4,2606:4700:3034::ac43:8c51
34632025-07-06T11:52:16+00:00www.ubuntumint.com111 . alpn="h3,h2" ipv4hint=104.21.94.212,172.67.140.81 ech=AEX+DQBB6wAgACA6pSHF4Zb76eSKOBpBfjq2P3CeoqpXYCtNtYroQ2TPBAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:5ed4,2606:4700:3034::ac43:8c51
34622025-07-05T19:57:21+00:00slashlib.me111 . alpn="h3,h2" ipv4hint=104.26.6.124,104.26.7.124,172.67.69.137 ech=AEX+DQBBHgAgACBhzwh2FqeQWAwWr2mMa6BX9Ywnqnzd0ANvnT0XzrWLbAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:20::681a:67c,2606:4700:20::681a:77c,2606:4700:20::ac43:4589
34612025-07-05T19:57:08+00:00dns.coffee111 . alpn="h3,h2" ipv4hint=104.21.57.149,172.67.146.166 ech=AEX+DQBBHgAgACBhzwh2FqeQWAwWr2mMa6BX9Ywnqnzd0ANvnT0XzrWLbAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:3995,2606:4700:3036::ac43:92a6
34602025-07-05T19:56:50+00:00facebook.com00[ 1 . alpn="h2,h3" ] [2 star-mini.fallback.c10r.facebook.com. alpn="h2,h3" ]
34592025-07-05T19:56:36+00:00cloudflare.com001 . alpn="h3,h2" ipv4hint=104.16.132.229,104.16.133.229 ipv6hint=2606:4700::6810:84e5,2606:4700::6810:85e5
34582025-07-05T19:56:26+00:00cloudflare.com001 . alpn="h3,h2" ipv4hint=104.16.132.229,104.16.133.229 ipv6hint=2606:4700::6810:84e5,2606:4700::6810:85e5
34572025-07-05T18:23:19+00:00slashlib.me111 . alpn="h3,h2" ipv4hint=104.26.6.124,104.26.7.124,172.67.69.137 ech=AEX+DQBB0QAgACDOZULLZcFr/+0II5ACGzuQqTqNEklGTBnUneGbhUznegAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:20::681a:67c,2606:4700:20::681a:77c,2606:4700:20::ac43:4589
34562025-07-05T17:41:52+00:00dns.coffee111 . alpn="h3,h2" ipv4hint=104.21.57.149,172.67.146.166 ech=AEX+DQBBVgAgACDlya862XkbuaEDO1oAA3ljyTyDawJ+8q04e+DnmmnRDAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:3995,2606:4700:3036::ac43:92a6
34552025-07-05T17:31:21+00:00detours.bgpmon.io111 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBVgAgACDlya862XkbuaEDO1oAA3ljyTyDawJ+8q04e+DnmmnRDAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34542025-07-05T05:48:56+00:00untappd.com001 . alpn="h2" ipv4hint=104.22.36.93,104.22.37.93,172.67.7.135 ipv6hint=2606:4700:10::6816:245d,2606:4700:10::6816:255d,2606:4700:10::ac43:787
34532025-07-04T14:28:34+00:001337x.to111 . alpn="h3,h2" ipv4hint=104.21.40.193,172.67.188.67 ech=AEX+DQBBRAAgACBnfXnUdie3UFaBvlI3GEVxSlKBj/xcFtwWHlNDJfBhSwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:bc43,2606:4700:3035::6815:28c1
34522025-07-04T13:33:41+00:00farhad.yshadan.ir111 . alpn="h3,h2" ipv4hint=104.21.13.141,172.67.132.227 ech=AEX+DQBBLQAgACDrOWOOA7zVKUGUMd9SqXeeUOg5fj8vdGVlG3FTCinPVgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:d8d,2606:4700:3030::ac43:84e3
34512025-07-04T13:31:00+00:00france.fandogh3.ir111 . alpn="h3,h2" ipv4hint=104.21.35.241,172.67.181.122 ech=AEX+DQBBLQAgACDrOWOOA7zVKUGUMd9SqXeeUOg5fj8vdGVlG3FTCinPVgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:23f1,2606:4700:3032::ac43:b57a
34502025-07-04T07:01:28+00:00astrakov.pro001 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34492025-07-03T20:04:08+00:00google.com001 . alpn="h2,h3"
34482025-07-03T19:54:27+00:00youtube.com001 .
34472025-07-03T19:16:01+00:00cloudflare.com001 . alpn="h3,h2" ipv4hint=104.16.132.229,104.16.133.229 ipv6hint=2606:4700::6810:84e5,2606:4700::6810:85e5
34462025-07-03T19:08:09+00:00google.com001 . alpn="h2,h3"
34452025-07-03T19:07:26+00:00noodlemagazine.com001 . alpn="h3,h2" ipv4hint=185.149.135.3 ipv6hint=2a0b:85c7:ffff::3
34442025-07-03T19:07:05+00:00instagram.com00[ 2 z-p42-instagram.fallback.c10r.facebook.com. alpn="h2,h3" ] [1 . alpn="h2,h3" ]
34432025-07-03T19:06:03+00:00cloudfare.com111 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBB2QAgACAzw4lzJlfbVs3wGWUAINAO/iu4yxGKNXL54CMWhGE0PQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
34422025-07-03T19:05:52+00:00facebook.com00[ 2 star-mini.fallback.c10r.facebook.com. alpn="h2,h3" ] [1 . alpn="h2,h3" ]
34412025-07-03T14:53:20+00:00elsalvador.travel111 . alpn="h3,h2" ipv4hint=104.21.80.189,172.67.153.73 ech=AEX+DQBBtgAgACC2qwn++9yRgn3G628N5+y1KBo9u3+z7UhWafGDET75QQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9949,2606:4700:3037::6815:50bd
34402025-07-03T14:10:35+00:00cloudflare-dns.com001 . alpn="h3,h2" ipv4hint=104.16.248.249,104.16.249.249 ipv6hint=2606:4700::6810:f8f9,2606:4700::6810:f9f9
34392025-07-03T11:53:31+00:00gsrc.eu.org:844310cname
34382025-07-03T11:52:50+00:00gsrc.eu.org:844310cname
34372025-07-03T09:45:59+00:000xy.link111 . alpn="h3,h2" ipv4hint=104.21.16.1,104.21.32.1,104.21.48.1,104.21.64.1,104.21.80.1,104.21.96.1,104.21.112.1 ech=AEX+DQBB/gAgACBnTfy7+OP7MoCe3P7rYXbsdGrvmDLxqzxNV16FO07cPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1001,2606:4700:3030::6815:2001,2606:4700:3030::6815:3001,2606:4700:3030::6815:4001,2606:4700:3030::6815:5001,2606:4700:3030::6815:6001,2606:4700:3030::6815:7001
34362025-07-03T07:04:55+00:00newsru.co.il001 . alpn="h2" ipv4hint=104.26.14.2,104.26.15.2,172.67.75.226 ipv6hint=2606:4700:20::681a:e02,2606:4700:20::681a:f02,2606:4700:20::ac43:4be2
34352025-07-02T21:58:29+00:00ccf-arn.sda.rip001 . alpn="h2" ipv4hint=104.21.61.74,172.67.207.94 ipv6hint=2606:4700:3032::ac43:cf5e,2606:4700:3037::6815:3d4a

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