my iphone safari opens on a white blank page for a few seconds and then closes

I have done all those steps given;still does nothing, get a blank page with just the connection bars and the internet at the top of the page

Hi book246,

Thanks for contacting Apple Support Communities!

We understand that you're unable to use Safari as it quits unexpectedly.

Restarting your iPhone is a great place to start! You can also clear website data, check any VPN settings if you have a VPN, and enable JavaScript as outlined here for additional troubleshooting: If Safari isn't loading websites or quits on your iPhone, iPad, or iPod touch - Apple Support

"Clear website data

You can clear website data occasionally to improve Safari performance.

1. Go to Settings > Safari.
2. Tap Clear History and Website Data.
3. Tap Clear History and Data to confirm.

Turn on JavaScript

Turn on JavaScript if it's not already on.

1. Go to Settings > Safari > Advanced.
2. Find the JavaScript feature.
3. Tap the button to turn on JavaScript."

We hope this helps you.

Take care!