Systems and methods for website segmentation and quality analysis

Described herein are systems and methods for assessing website quality based on automated website analysis. A method can include identifying, by a computing system, a website to evaluate, retrieving code for webpages of the website from one or more web server systems that host the website, locally executing and interpreting the code to render the webpages as they would appear on client devices, identifying webpage segment criteria, analyzing the webpages to identify a subset of webpages that include a segment satisfying the webpage segment criteria, identifying a quality issue in the segment that is present in each webpage in the subset, determining a quantity of times the quality issue occurs across the subset of webpages, and providing information to a client device to cause the client device to present an indication of the issue and an indication of the quantity of times the issue occurs across the subset of webpages.