# Pihole is Active and blocking, but there are still a lot of ads appear

**URL:** <https://discourse.pi-hole.net/t/pihole-is-active-and-blocking-but-there-are-still-a-lot-of-ads-appear/61810>\
**Category:** Help\
**Created:** [March 13, 2023, 8:00am UTC](https://discourse.pi-hole.net/t/pihole-is-active-and-blocking-but-there-are-still-a-lot-of-ads-appear/61810 "2023-03-13T08:00:55Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![jfb](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/jfb/32/4332_2.png) [@jfb](https://discourse.pi-hole.net/u/jfb)\
**Post date:** [March 13, 2023, 2:22pm UTC](https://discourse.pi-hole.net/t/pihole-is-active-and-blocking-but-there-are-still-a-lot-of-ads-appear/61810/3 "2023-03-13T14:22:19Z")

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> [@eist](#):
>
> This is the nslookup
> 
> nslookup pi.hole  
> Server: UnKnown  
> Address: fe80::1
> 
> \*\*\* UnKnown can't find pi.hole: Non-existent domain

This client is not using Pi-hole for DNS.

> [@eist](#):
>
> This is the ipconfig (the DNS is correct on the OrangePi)
> 
> DNS Servers . . . . . . . . . . . : fe80::1%16  
> 192.168.1.47  
> 1.1.1.1

> [@Why should Pi-hole be my only DNS server?](https://discourse.pi-hole.net/t/why-should-pi-hole-be-my-only-dns-server/3376):
>
> Reduced Ad Blocking Capability The main reason you should Pi-hole as your only DNS server is that you will see increased performance in the blocking of ads. If you have two DNS servers (Pi-hole and something else), your network clients may not always query Pi-hole for name resolution. If a query happens to be answered from a non-Pi-hole DNS server, your block lists will not apply (since that DNS server doesn't know about them). All Queries Need To Go Through Pi-hole First Since other DNS serv…

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_[View the full topic](https://discourse.pi-hole.net/t/pihole-is-active-and-blocking-but-there-are-still-a-lot-of-ads-appear/61810)._