Script to read the Network tab in Google Chrome’s Developer tool

I would like to create a script (which may become a Chrome extension in the future) that reads the request log and searches for keywords in urls. The goal is to build a script that replaces the manual check of the:

  1. open Network
  2. filter for a keywork
  3. see what clicks in the request urls.

If it finds something then it creates a popup to alert me otherwise it returns an error.
I have tried several scripts but it seems that the problem is in reading the network log.
This is the last script I used, how can I improve it?

// Funzione per monitorare le richieste di rete
function monitorNetworkRequests() {
  // Intercetta le richieste di rete usando l'API PerformanceObserver
  const observer = new PerformanceObserver((list) => {
    const entries = list.getEntries();

    entries.forEach((entry) => {
      const url = entry.name.toLowerCase();

      // Controlla se l'URL contiene "adform" o "doubleclick"
      if (url.includes("adform")) {
        showPopup("Tracciamenti di adform implementati!");
      } else if (url.includes("doubleclick")) {
        showPopup("Tracciamenti di doubleclick implementati!");
      } else {
        showPopup("Tracciamenti non implementati!");
      }
    });
  });

  observer.observe({ type: "resource", buffered: true });
}

// Funzione per mostrare un popup al centro dello schermo
function showPopup(message) {
  const popup = document.createElement("div");
  popup.innerText = message;
  popup.style.position = "fixed";
  popup.style.top = "50%";
  popup.style.left = "50%";
  popup.style.transform = "translate(-50%, -50%)";
  popup.style.backgroundColor = "rgba(0, 0, 0, 0.8)";
  popup.style.color = "white";
  popup.style.padding = "20px";
  popup.style.borderRadius = "8px";
  popup.style.fontSize = "16px";
  popup.style.zIndex = "10000";

  document.body.appendChild(popup);

  // Rimuove il popup dopo 3 secondi
  setTimeout(() => {
    popup.remove();
  }, 3000);
}

// Avvia il monitoraggio delle richieste di rete
monitorNetworkRequests();