In: Computer Science
The very basic structure of the webpage is based on Frontend and Backend. The frontend consists of HTML (hypertext markup language), which is used for structuring the webpage. CSS (cascading style sheets), which is used for appearance and designing the webpage and JS (javascript), which deals with the functionality of the webpage and other dynamics designs like React, Redux, etc. The HTML, CSS, and JS work like nouns, adjectives, and verbs respectively as an analogy to the structure of an English sentence. The backend, however, is everything else in which the frontend is not and consists of all the various logic behind each and every component of the webpage. The backend is designed using programming languages like Ruby, Python, Java, frameworks like .NET and tools like MySQL, etc.
The design structure of the webpage should be kept quite simple and user friendly e.g. Having a "Need Assistance" box or an online 24X7 "messaging assistant" with predefined solutions of some usual and expected problems for troubleshooting or finding the desired things in the website. And the accountability of other problems can be solved by on-call assistance, just like a call center. Also, the corresponding backend logic has to be done in an automated way which inturns compliment the simplicity of use.
As far as research, collecting data, and content filtering are concerned. These can be dynamically done by an automated process that is run by a code at the backend that is dependant on some other site/source from where you want to fetch, compare, restrict, or filter the data being shown at your website and keep them updated. e.g. if you want to add a COVID-19 Tracker on your website for your visitors to be aware of the current stats of the pandemic, you can fetch the data of some government website and usually, those are enabled to share such data with proper citations of the source website. For content filtering, some paid and free sites can be used. e.g. WebTitan (reference link: https://www.webtitan.com/website-content-filtering-solution/) is a paid online content filtering for the website and it can be attached to your backend code to automate the process of content filtering of your website.
The whole point of fetching things over the internet and the idea of a website is pretty much 24X7 as long as you have sourced the access of the website and corresponding sources 24X7.