What Are Chrome DevTools and What Should I Know?
One of the best tools to improve the technical aspects of search engine optimization within a new project can be found right inside the Google Chrome web browser. We are talking about Chrome DevTools, which can be accessed from just about any browser that is derived from the Chromium code base, which means that Microsoft Edge, Vivaldi, and Opera can also be used to this effect.
Chrome DevTools are not exactly easy to use; you need to have at least a rudimentary understanding of HTML, JavaScript, and CSS in order to be able read the Lighthouse report. Thankfully, this report is not difficult to read, and it has the advantage of letting you get in deep with regard to the issues it finds on the page. For example, if you see files or items that are taking a while to load, this affects page loading speed times, which are a confirmed signal in the Google search engine algorithm. You need to click on the Learn More link of every Lighthouse report issue in order to get to the bottom of the problem. In some cases, the underlying causes are not the ones you initially thought.
The Google algorithm that is built into the crawler is now able to detect bad JavaScript, but it is not 100% accurate. You should still take a look at what is returned by Lighthouse standards. If your browser does not include the "alert" attribute for the HTML string in the "type" attribute of the page element, Google will skip the request and return an unauthenticated error report; when that happens, users will see what they think to be a bad URL, or will get an unknown page error message. If the user wants to know how to solve the issue, the Google Search Console will show search results, links to Google's Knowledge Base, and other helpful information.
If you are not very aware of HTML issues, or you're writing HTML in one of the JavaScript frameworks we are using, it's useful to know a bit about how HTML works. It is crucial to understand how HTML interacts with JavaScript and how it interacts with browsers — as well as how to optimize for each one. For more information click here https://www.reddit.com/r/SEO/comments/nm25ka/chromedevtoolsfortechnical_seo/.