To prevent F5-refresh on a website after two times, there are a few approaches that can be taken without writing any code. Here are some possible solutions:

Inform the user: One approach is to inform the user that they are only allowed to refresh the page twice. This can be done by adding a message or a notification on the website indicating that the page can only be refreshed twice. This can help to set expectations and prevent users from accidentally refreshing the page multiple times.

Use browser caching: Another approach is to use browser caching to store the page content on the user's browser. When the user refreshes the page for the first time, the browser will load the content from the cache instead of requesting it from the server. This can help to reduce server load and prevent unnecessary page refreshes. However, this approach may not work in all cases, as some pages may require real-time data that cannot be cached.

Implement a timer: A third approach is to implement a timer that prevents the user from refreshing the page again for a certain amount of time. For example, after the user refreshes the page once, the timer could be set to 30 seconds, after which the user is allowed to refresh the page again. This can be done by using JavaScript to disable the refresh button or by adding a delay to the page refresh. This approach can be effective in preventing accidental refreshes, but may not work in all cases where the user needs to refresh the page frequently.

Use a session variable: Another approach is to use a session variable to track the number of times the user has refreshed the page. When the user refreshes the page for the first time, the session variable is set to 1. On the second refresh, the session variable is set to 2, and the page is blocked from refreshing again. This can be done without writing any code by using a content management system or a website builder that has built-in session variable support. However, this approach may not work in all cases, as some browsers or devices may not support session variables.

In summary, there are several ways to prevent F5-refresh on a website after two times without writing any code. These include informing the user, using browser caching, implementing a timer, and using a session variable. The best approach will depend on the specific needs of the website and the users who will be accessing it.