Today,I am login to m1.codeforces.com to look up the judge status of last div.3. When I log in, it reminds me "**Please wait.Your browser is being checked.It may take a few seconds**" and can not enter the contest interface. So,what's up with it? 
UPD1：I tried to use mobile phone with another network to log in.The same as it is.
UPD2: I changed another browser(360) and it works.
| № | Пользователь | Рейтинг |
|---|---|---|
| 1 | Benq | 3792 |
| 2 | VivaciousAubergine | 3647 |
| 3 | jiangly | 3631 |
| 4 | Kevin114514 | 3574 |
| 5 | maroonrk | 3521 |
| 6 | strapple | 3515 |
| 7 | Radewoosh | 3461 |
| 8 | tourist | 3428 |
| 9 | turmax | 3378 |
| 10 | Um_nik | 3376 |
| Страны | Города | Организации | Всё → |
| № | Пользователь | Вклад |
|---|---|---|
| 1 | Qingyu | 162 |
| 2 | adamant | 148 |
| 3 | Um_nik | 146 |
| 4 | Dominater069 | 143 |
| 5 | errorgorn | 140 |
| 6 | cry | 138 |
| 7 | Proof_by_QED | 136 |
| 8 | YuukiS | 135 |
| 9 | chromate00 | 134 |
| 10 | soullless | 133 |
Auto comment: topic has been updated by Sparrow_Guo (previous revision, new revision, compare).
Same, I was trying to participate in Div3 from it, but it kept showing this
it works well after i close my vpn
I do not use vpn when I log in.....
Auto comment: topic has been updated by Sparrow_Guo (previous revision, new revision, compare).
How long did you wait?
(I measured that it takes about 1 minute and 20 seconds to get past this screen)
(UX improvement: add a static spinner to that page and it's massively improved)
At least 10 minutes when the notice appear for several times.I tried to refresh the page to reload.However,it changed to a blank page after refresh.....