Hello!
Over the past few days, I've received reports that Cloudflare is sometimes blocking completely legitimate actions by regular users.
I've already figured out some of the reasons for this (I think it's better now). However, it would be helpful if, in such cases, you could leave a comment here in the format: "URL : Ray ID : description of the action." For example: "https://mirror.codeforces.com/contest/2001/submit : 8b7fd4274bc1c315 : just tried to submit a solution."
I believe that if we gather such incidents, we can quickly eliminate this unwanted behavior.
8b87870c58750c47 : sending a meesage
https://mirror.codeforces.com/contest/1234/submit : 8b87a976addd7712: just tried to submit a solution.
Fixed. Please, try again.
It's working now. Thanks.
tried to submit and it didnt work -> https://mirror.codeforces.com/contest/1486/problem/C1?csrf_token=46daed039f8b59ceec3b332239fec017
7 Comments so far and only 1 person has done what Mike asked. That person is getting downvoted to hell.
Ooops 8 comments now ....
how do i get my ray id, i dont have any idea
I tried to submit a solution and cloudflare shows "You have been blocked". At the bottom of this page, I got the Ray ID.
https://mirror.codeforces.com/contest/2003/submit : 8b8c57b2fa9b1d5f : just tried to submit a solution.
I can't find such Ray ID in Cloudflare logs. Are you sure in it?
This is the screen capture. https://x.com/maspy_stars/status/1827719441364537448/photo/1 I copied the 'Cloudflare Ray ID' from the bottom of the image.
I tried to submit again, and this time, I succeeded.
I non-stop AM getting forbidden 403, if I change into a different app(I'm on Linux), it blocked all interactions for 5min on today's contest.
When I use my ipad but not PC to submit or visit the main page,I need to reload the Cloudflare again and again,but unluckily,I still can`t access it. Can anyone explain why?
https://mirror.codeforces.com/enter?back=%2F : 8ba2f4aea8bc0f6e : just tried to login
8bc6bac8ba537f62
CloudFlare Ray Id : 8bd4ca818f5d7fdf
Was trying to text a friend.
8bd66421ceb947b5
https://mirror.codeforces.com/blog/entry/new/272924?locale=en : 8be51d5a3ff2a8b5 : saving a blog post draft (edited: resolved)
8bf031f0edffb936
I have tried to enter my account via laptop :(
8c53383fdea20b90
MikeMirzayanov, I've tryed to enter account using my laptop.
And I couldn't do it, while there is all right with my phone :(
UPD: It seems we don't have a large number of issues with this. But thanks to everyone who reported: I've applied one more reconfiguration and hope to see even fewer (or almost none) reports now.
Ray ID: 9414bfb4ac56d25d tried to login
https://mirror.codeforces.com/contest/687/submission/283903129 : 8cbcd439583fbc25 : cannot open my submissions
https://mirror.codeforces.com : 8d350dba98040899 : just tried to open codeforces via mobile phone.
https://mirror.codeforces.com/usertalk : 8d4082517a0c04b7 : send a message
https://mirror.codeforces.com/enter?back=%2F : 8f382ca29f262c32 : just tried to login
MikeMirzayanov pls see this comment
deleting the
?back=%2Fpart from the URL sometimes works for me. It's not a permanent solution, but maybe it might work for you until Mike takes a look?https://mirror.codeforces.com/enter?back=%2F : 90bcf934ae4be1c1 : just try to log in
https://mirror.codeforces.com/enter?back=%2F : 91328bff0f9e858b : just try to log in
https://polygon.codeforces.com/login?ccid=2dee5ea2b68be0cd66c9a27a7d040ab7 : 915ca5806baad35d : just tried to login
https://polygon.codeforces.com/login : 915d7fea8ffb8d5b
https://polygon.codeforces.com/login?ccid=e3eea71f964afcc157da1206782bcc22 : 915f96b688ffd94b
MikeMirzayanov Please take a look, this problem with polygon has been going on for a week now
still having this problem
Subject: Unable to Log In – Blocked Without Ray ID
Message: Hello,
I’m having trouble logging into my account metarudra28. Every time I try, I get a blockage message, but there is no Cloudflare Ray ID shown. I recently used a VPN, which might be related to the issue.
Could you please look into this and help me regain access? Let me know if you need any further information.
Please bring my account back
Thank you for your time and assistance.
Best regards, Rudra Bhungaliya
I also can't login to my account xor_cat. and error message was also temporarily blocked by the administrator. Could any adminstrator have time that can help me check my account? Thanks
Hello Mike My account on login shows u re temporarily blocked by the administrator,
I had used Vpn yesterday, here on login I am not getting blocked by Cloudflare, but I am perhaps been blocked by the website.
Please help me login with my account.
metarudra
923321d349f87214: tried to submit a solution
I cannot submit a solution to any problem since March 18. The mirror site does not work either.
MikeMirzayanov Could you please look at this?
I can't login into my account tophhh It says blocked by the administrator i tried with vpn same issue, i can log in to m1.codeforces.com but not into the regular site. Once i logged into the regular site but it logged me out after couple of minutes. Please fix this
same issue KAN
Please resolve these issues soon. Thanks!
92477df21f749d8e : just tried to log in
Sorry to bother this thread after seven months, but my classmate encountered this issue and couldn't log in to codeforces.com.
Normally, he uses mirror.codeforces.com, but today the mirror seems to be malfunctioning, and he can't log in to CF. This is the Ray ID he received when trying to log in to the main site after turning off his VPN: 925e9ca23d5a09c0.
url: https://mirror.codeforces.com/enter?back=%2Fprofile%2Fbeyondpluto | Ray ID: 928533058e25f429 | Unable to log in using college Wi-Fi. Stuck in an infinite "Verifying you are human" loop. Sometimes also unable to submit during contests. [another Ray ID: 92851f5b68b2859c]
https://mirror.codeforces.com/enter?back=%2FcontestRegistration%2F2086 : 92a0e9948c2f2b24 : just tried to register.
Ray ID: 933d50dffdc85514
Trying to login to account -- Ray ID: 933d6a96e91be90a
Been the same issue for few weeks now!
Ray ID: 9414bfb4ac56d25d tried to login
https://mirror.codeforces.com/enter : 941d9cccdc9e3108: just try to login .
Cloudflare Ray ID: 951383d658108e61
tried to submit a solution to https://mirror.codeforces.com/contest/2121/problem/C
got Cloudflare "Sorry, you have been blocked" message. Can't submit code since that to any other problem either.
https://mirror.codeforces.com/enter?back=%2F
RayId: 9521a9b24d3b3545
Did you get any response? I've even written to MikeMirzayanov 3 weeks ago, but that message is still in "unread" state. And I'm still blocked from sending in solutions.
Have u been unblocked ?
Turns out I wasn't blocked in general, just that one solution which I tried to upload. And then I was using that for testing each day that if I am still blocked.
Hi, I am also blocked by cloudflare and it looks like mike is not resolving it. Have to tried vpn. I wonder if it work.
https://mirror.codeforces.com/problemset/problem/2115/A?csrf_token=c614d3ca925de351c278574eea0eeda3 9675a69aac76bc11 tried to submit and it blocked me
Cloudflare Ray ID: 96c4dee9ff519b27
96c74b477ebd37b5
URL : https://mirror.codeforces.com/contest/2131/problem/B?csrf_token=9930e599f7a71470933c72ebcc4d1625 Ray Id: 96f29c94eccb38b4 just tried to submit a solution
https://mirror.codeforces.com/contest/1312/problem/C : 972afcff7d9f7ea4 : Just tried to submit a solution
It works When I submit the code through cf editor But fails when I submit file.
9730f7da6d963e4e
976c76eb1a9e59d2 : i was just trying to submit a code
Cloudflare Ray ID: 976dc0c52ffbf470,just tried to submit a code
https://mirror.codeforces.com/contest/2148/problem/B?csrf_token=fd5a9d875fed900ec400b5bd7d2ad976 : 97e8eb4afa85897b : trying to submit a solution
I don't have a ray id, but every hacking round I get flagged for crawling (and am currently flagged for crawling). This is having a large impact on the quality of tests in hacking rounds.
97fa12c0be7746c2 — while trying to submit a solution
https://mirror.codeforces.com/contest/1913/problem/B?csrf_token=6462b637c0e8b8193862664333dd611a just tried to submit a solution.
https://mirror.codeforces.com/contest/1913/submit 98173a397abd494e just tried to submit a solution
Ray ID -> 9882a266ef9c3f38
https://mirror.codeforces.com/problemset/submit : 986b770d1f65ce31 : just tried to submit a solution, but Cloudflare blocked it as a suspected bot action.
https://mirror.codeforces.com/problemset/problem/510/A?adcd1e=caf4f8lwa8kyzz&csrf_token=270b4da077f24f9bbd50e2a628e7a258:9978dcf51c5be348:just tried to submit a solution
My new account also got blocked. I created it as previous account is blocked and I was trying how to resolve this issue.
https://mirror.codeforces.com/problemset/problem/510/A?adcd1e=caf4fvyyyex2od&csrf_token=c7d997ee3a188b5621b52fd030f76661:9978d1efdff5dc97:just tried to submit a solution
Ray ID -> 9a6927bb0a3e197f Tried to login
9ab593d2d9a4afda
ray id : 9acb35fe6a9f5492 just tried to view my profile
Ray ID — 9b087d16a95da73c
9bd2fe486d9a050c，login problem
9bd5fa39ae3c8dd6
just tried logging in from chrome instead of zen https://mirror.codeforces.com/enter
9bd67f30da7d8acc
tried to submit a problem
again, i literally JUST TRIED TO SUBMIT 9bd6ed3e59705017
tried to submit a problem 9be6901f8db39d36
my codeforces id shubhamtiwari2321
9bff94635b0b6277, happened while using ProtonVPN which I have not faced problems with before.
https://mirror.codeforces.com/edu/course/2/lesson/4, 9c26ba400c45f3a7, The theory section in the EDU section, lesson about the tree of segments, doesn't open.
9c34ce165f7e302a, trying to access any page other than the home screen leads to a block
https://codeforces.con/profile/techwiz244: 9c6aebf93c8ef56a :just was searching my profile from my laptop and it got blocked
https://mirror.codeforces.com/ ：9c98cfb3c9cd9cf5 ：just tried to submit a solution
https://mirror.codeforces.com/blog/entry/150936: 9cb8eb217df276a5 : just trying to access a blog
https://mirror.codeforces.com/profile/SwapnilPatil28 : 9cc9d3f648318a21 : I opened my profile as usual on laptop and suddenly I got this Blocked Pop up
https://mirror.codeforces.com/enter : 9cc9eeb06c0fe31e : I see the error for any pages except the main page (login, groups, blogs, etc.)
https://polygon.codeforces.com/ 9cc9eed40e86e31e : just tried to enter the Polygon
Cloudflare Ray ID: 9cca26b7bb3dfdbe
Cloudflare Ray ID: 9ccae94c5aa08139
When tried to log in
Ray ID : 9ccb02772e6a5978
Ray ID: 9ccb7693db4d3d1e Action: I was trying to open my profile.
Ray Id: 9ccb78c51dffa631
Action: When I try to go to the problemset.
Actually it happens when I go to any page other than home page.
https://mirror.codeforces.com/enter?back=%2F : 9ccbd87af848b486 : Tried logging in as usual on laptop. Rn im writing this on my phone
Nvm, you can just delete codeforce cookies and site data and youre back
Ray ID: 9ccd7952ad39fd4f
Action: trying to enter any page other than homepage
Ray ID: 9ccded3eeb4fb5f9
Action: trying to enter any page other than homepage
Ray ID: 9cd6738669c72ddf
Action: https://mirror.codeforces.com/contest/1955/submit
Cloudflare Ray ID: 9cd681473b70dbd5
i had kept a question open and shut down my laptop, when i reopened my laptop, i got this message
Sorry, you have been blocked You are unable to access codeforces.com
Why have I been blocked? This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.
What can I do to resolve this? You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.
Cloudflare Ray ID: 9cd681473b70dbd5 • Your IP: Click to reveal • Performance & security by Cloudflare
Ray ID: 9cd68e92ed53543b
Action: trying to enter any page other than homepage
https://mirror.codeforces.com/contestInvitation/831bc712f8ccc6fdec8cc2bd810d3a2491595e41 : 9cd67e883e745232 : tried to access a private gym.
Cloudflare Ray ID: 9cd6a0842d007c40
Action: trying to enter any page other than homepage
9cd699b01ef1c3db : I submitted a solution in virtual contest and got blocked
Ray ID: 9cd6a56cfafd37ea
Action: trying to open any page other than the homepage.
It started just now
https://mirror.codeforces.com/contest/1528/problem/A: 9cd6b8dbbd4fc9dc: just tried to submit a solution
9cd6be2699d13f79 i was refreshing my profile page
Ray ID: 9cd9e36ebf6bdda1
Action: block from every page except homepage
https://mirror.codeforces.com/problemset/problem/22/A: 9cda76467af359e7 :i wast just publishing solution on 22A when it happened .
9ce36fb0edb08362 mine is also blocked
9ce8f9be3d60se28
"https://mirror.codeforces.com/problemset/ : 9ce94149fa47d754 : just tried to open the problemset page"
Cloudflare Ray ID: 9cee575aeb54129f
Cloudflare Ray ID: 9cee4ccfdebddb85 ,just tried submitting a solution for a problem
Ray ID : 9cee66326eaed0c4
https://mirror.codeforces.com/problemset/problem/1914/G2 : 9cee6ba4c97f7718 : just tried to submit a solution
Cloudflare Ray ID: 9cee69c0ea16613f Description of the action: left the questions tab open after yesterday's last submission (many such question tab are open on my PCs browser (Brave)) Today tried to login and the "you are blocked message popped up"
Kindly look into the issue.
Update1: I tried using diff browser on my PC and was able to login, but still facing the issue on Brave browser
https://mirror.codeforces.com/contest/2197/submit : 9cee6e425e34feb5 : tried to submit a solution
Cloudflare ray id: 9ceebada79123af8 Was trying to login.
Cloudflare Ray ID: 9cee98600980b6f2
Action: just tried to open any page different from Homepage.
Update: bug fixed, thanks!
https://mirror.codeforces.com/contests : 9cef30729aef988b : opening anything other than homepage
Edit: fixed, thanks!
https://mirror.codeforces.com/problemset/submission/1561/363325927 try to access this and getting this from backend "Page is temporarily blocked by administrator"
9cef6bbb5abe6749. I get blocked when checking any other site than the homepage. It started this morning and only happens in one of my devices ;((
https://mirror.codeforces.com/problemset/problem/1638/D : 9cf1467df960fdea : Just tried to open the problem.
To fix this error, you need to clear your cookies and cache data, then log in again.
If the problem persists, try a different browser.
hey mike i was trying to find some questions in the section earlier in the morning 2 hour before was referring other resources it was okay till then i came home right now i again opened codeforces to access those questions but i couldnt on my phone please fix this as fast as possible cause i solve questions in my class solve thier logic with my phone and code it on my laptop as it saves my time please fix this as fast as possible also when i recieved this error i was opening my friends profile from recent searches cloudflare id: 9cf1ec65ef65a740
9cf2bb04ef813c3c : just searched for a problem by typing in url and got blocked
https://mirror.codeforces.com/problemset/problem/1541/B : 9cf30c77cc94bb67 : tried to refresh after submitting a solution
https://mirror.codeforces.com/register : 9cf315e41f227ed9 : just trying to login my account
9cf328f37cef7f3f My friend Just tried to login codeforces.com but cloud flare blocked So I am publishing
9cf315de5962cb85 : blocked from any page besides homepage (clearing cookies/cache fixed this)
https://mirror.codeforces.com/contests:9cf343a44e5412ad:I was just browsing contests
https://mirror.codeforces.com/contest/351/problem/E: 9cf45be1b93fa0f1 : just tried to watch the problem
9cf460dbbf93e754
https://mirror.codeforces.com/problemset:9cf46fbccda87eaa:just trying to access the website
9cf46790dfd50cc7 : tried to open in brave browser but getting blocked and in chrome my account is working fine
9cf47aba1db477d3
https://mirror.codeforces.com/problemset：9cf4a8e388ae14c4，login problem
https://mirror.codeforces.com/contest/406/problem/D : 9cf5201d5948105b : wanna watch the problem again:v
Ray ID: 9cf56f32aeeb7f7d
Appears blocked whenever I try to go to any page other than homepage.
https://mirror.codeforces.com/contests: 9cf5766ecf39b2a0: just tried to open contests page
shows blocked when I go to any other page than home page Ray ID: 9cf57a0e4913efc3
Edit : Fixed
9cf57513f8dd5469: blocked on any page other than home page in brave browser. firefox works just fine
Blocked in chrome browser in any page other than home page, Ray ID changes everytime I refresh the page, for example last Ray ID seen : 9cf59a59c9bce1d0 .
https://mirror.codeforces.com/contests : 9cf5da12c98a213a : opening anything other than homepage
https://mirror.codeforces.com/problemset/problem/510/C : 9cf5d9d1b9fae0d2 : just tried to submit a solution
https://mirror.codeforces.com/problemset/problem/580/E : 9cf65515cdf6219a : just open the link
https://mirror.codeforces.com/enter?back=%2F : 9cf67bede8dc5512 : tried to enter
9cf6dc221c8536c6 I got blocked,when I click to my profile
9cf6eafc78d77766 i was blocked when i open contest area
https://mirror.codeforces.com/problemset/problem/1475/E just tried to submit a solution.363429510
https://mirror.codeforces.com/problemset/status?my=on : 9cf6e3f069da5924 : Was just submitting my solution
https://mirror.codeforces.com/profile/JAY19 : 9cf6eed6eb718990 : tried to open my profile. got unblocked. Thanks
9cf6f3bc9d6985a5 : was just submitting a solution
9cf6f566fa7ba81b
Cloudflare Ray ID: 9cf7073c5ffa0bf9: opened the problems while simulating a gym
hi i was openning a problem and it blocked me please help --> Cloudflare Ray ID: 9cf70705fbbedc76