When it comes to troubleshooting or singling out points of failure on a website, one of the most helpful tools in the Rigor application is the waterfall chart. Waterfall charts show you which resources are being loaded onto the page, and how long each resource takes to load. Assuming that you already have a basic understanding of how to read them, let’s take a look at some of Rigor’s filtering options for waterfall charts.
By default, the waterfall chart in Rigor displays the following information about each resource that is being loaded on the page:
- Request method
- Request URL
- Status code
- File size
- Load time
For more detailed information for each resource, we can click on a resource to show an expanded view. In particular, to view information about Content-Type, Domain, or Remote Addresses for all resources, we can make use of filters to add or remove columns to the waterfall chart. This allows us to quickly scan all the resources for patterns in the loading behavior, which can provide insights into errors.
Information about content-type, domain, or remote addresses is helpful in narrowing down potential sources of error. For example, if resources from a single domain or remote address are not loading, the issue is likely to be related to server-side errors. By narrowing down potential sources of error, we can respond much more quickly to bring a website back online.
To learn more about analyzing waterfall charts using Domain Analysis and HTTP Referer Analysis, see here.