iPhone making chirping noise from safari

Sometimes when im listening to music and just using my phone to play games I notice that whatever music im listening to gets stopped and a loud chirping noise plays. At first I thought this was from the gameI was playing so I ignored it until I noticed it would happen to random apps. It happened yesterday again but this time I was able to swipe up the control centre (because it stoped my music) and I saw where it was coming from.

I quickly took a screenshot and a screen recording of it.

It says its coming from a website but im not sure what it is. I went on the website and its just an MP3 playing of the exact noise i keep hearing. Does anyone know what this is? Did I download something and its doing this? I closed all of my safari tabs and cleared my cache and turned my phone off and on and even updated it to ios 11.2.6 but nothings helping.