GTmetrix is an efficient website checker tool which will give you a full insight report of performance.
The bottlenecks can be detected easily if you will have the detail information of performance score. The tool will also give you a recommendation on how to optimize.
The details include page speed, Yslow score, waterfall, video and history with other recommendations. You can check the individual load time of the page.
The data of recommendation consist of grade, type of data and priority of data. The summary report will indicate the total page size and total requests.
You can easily compare the performance of the website relative to the average of all websites checked by this tool. The tracking of performance by interactive visual graphs showing the detail information is easy.
You can monitor the page by scheduling the time whether monthly, weekly or daily to ensure the optimal performance.
Pro users will get some advanced features such as simulate a device, change the screen resolution, add a custom DNS and create presets, etc. In videos, you can slow the playbacks and view the page load in a filmstrip view.
Moreover, the plus users will also get advanced features such as HTTP authentication, connection throttling, URL whitelist/backlist, and Adblock plus for security.
The key features consist of uptime monitoring, real user monitoring, synthetic interaction testing, page speed monitoring and many more. The tool will alert you whenever there will be real faults occurred and poor performance.
There are four different sections which include waterfall breakdown, performance grade, page analysis, and history.
The page analysis will display the information such as size analysis, size per domain, the number of requests per domain and what type of content had most requests.
It will also outline the where are bottlenecks and where to make the improvements.
WebPageTest is easy website checker tool to monitor the performance. You can run simple tests with some advanced settings.
The test includes multi-step transactions, video capture, content blocking and many more. The advance setting provides many options such as advance, chromium, auth, script and custom while testing.
The visual comparison also can be done via various test configurations by entering multiple URLs. It has a unique feature of the first view and repeats view.
That indicates the first time DNS lookup delay which was mentioned earlier. The grade is assigned from F to A which depends on different performance tests such as compress transfer, compress images and effective use of CDN.
The report is divided into various sections such as summary detail, performance review, content breakdown, and screenshots.
Yslow is also a webpage analyzer tool which will be based on the yahoo’s rules for high performance. They offer suggestions and bottlenecks for improvement.
It also provides other tools for performance analysis such as Smush.it, JSLint. Yslow will first crawl the Dom to find all the components and gather the information of components.
After gathering the information, it generates the grade for each rule and then turns into the overall grade. It has 23 different rules to check the performance such as CDN and CDN reducing DNS insight.