Why these dns servers

found this in puli router
mine DNS-servrar

240b:4001:20c:8501:9018:ecd8:11c7:ed0 (Alibaba US Technology Co., Ltd. i Singapore) DNS-läcka!
240b:4001:20c:8501:9018:ecd8:11c7:ed1 (Alibaba US Technology Co., Ltd. i Singapore) DNS-läcka!
47.254.170.30 (Alibaba US Technology Co., Ltd. i Germany) DNS-läcka!
47.254.152.234 (Alibaba US Technology Co., Ltd. i Germany) DNS-läcka!
180.76.14.143 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!
180.76.14.17 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!
180.76.14.21 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!
180.76.14.18 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!
2607:f8b0:4004:1007::104 (GOOGLE i United States) DNS-läcka!
180.76.14.147 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!
180.76.14.15 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!
180.76.14.144 (Beijing Baidu Netcom Science and Technology Co., Ltd. i China) DNS-läcka!

What does “DNS-läcka” mean?

ops sorry means dns leak