# Ads show with a 5-10 seconds delay
**URL:** https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310
**Category:** Help
**Created:** [April 21, 2025, 12:54pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310 "2025-04-21T12:54:37Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Marci](https://discourse.pi-hole.net/u/Marci)
#### Post date: [April 21, 2025, 12:54pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/1 "2025-04-21T12:54:37Z")
Hi forum
when visiting the site [wieistmeineip.de](https://www.wieistmeineip.de) everything loosk good but ads appear about 5-10 seconds after the page loaded, although my pi-hole blocking is working fine.
Is there any chance for me to keep these ads blocked?
Expected Behaviour:
Ads should not show
Actual Behaviour:
Ads show with a 5-10 seconds delay
Debug Token:
[https://tricorder.pi-hole.net/p7AIhfs2/](https://tricorder.pi-hole.net/p7AIhfs2/)
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### Author:  [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)
#### Post date: [April 21, 2025, 4:42pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/2 "2025-04-21T16:42:04Z")
That usually means you have more than just Pi-hole as the DNS server for clients to use.
> [@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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### Author:  [@Marci](https://discourse.pi-hole.net/u/Marci)
#### Post date: [April 21, 2025, 9:07pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/3 "2025-04-21T21:07:19Z")
Thank you very much for your fast reply @DanSchaper
I am resoving DNS with pfSense and I am not using any other resolver or DNS server.
So I guess there might be another root cause?
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### Author:  [@Marci](https://discourse.pi-hole.net/u/Marci)
#### Post date: [April 22, 2025, 12:47pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/4 "2025-04-22T12:47:27Z")
Short update, I tested the site with Firefox, Brave and Chrome.
In Chrome the ads never show up, but in Firefox and Brave they do.
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### Author:  [@Marci](https://discourse.pi-hole.net/u/Marci)
#### Post date: [April 23, 2025, 10:31pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/5 "2025-04-23T22:31:17Z")
_bump_ 🫣
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### Author:  [@robgill](https://discourse.pi-hole.net/u/robgill)
#### Post date: [April 24, 2025, 1:59am UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/6 "2025-04-24T01:59:19Z")
> [@Marci](#):
>
> In Chrome the ads never show up, but in Firefox and Brave they do.
Check that you haven't inadvertently enabled [DNS over HTTPS in firefox](https://support.mozilla.org/en-US/kb/dns-over-https).
If it is set to anything other than "OFF" in Settings -\> Privacy and Security -\> DNS over HTTPS, then firefox will try to go around your network's DNS.
I gather brave has a similar option to explore.
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### Author:  [@Marci](https://discourse.pi-hole.net/u/Marci)
#### Post date: [April 24, 2025, 1:41pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/7 "2025-04-24T13:41:32Z")
Thank you for your comment @robgill , I have checked my firefox seeting but it seems all has been tunred off
So I guess there must be anyother reason.
I am also wondering why the ads show up quite late. It takes about 6-7 seconds after the page fully loaded.
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### Author:  [@system](https://discourse.pi-hole.net/u/system)
#### Post date: [May 15, 2025, 1:41pm UTC](https://discourse.pi-hole.net/t/ads-show-with-a-5-10-seconds-delay/79310/8 "2025-05-15T13:41:59Z")
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