Tools to scan for website problems

This post lists useful tools that will help you identify and troubleshoot website problems. These tools are easy to use and will undoubtedly help your site be secure, fast, and, of course, found. All components of a site are equally important. Therefore you need to check your website for security, coding, SEO, CDN, hosting, and network issues with equal importance.

For the most part, enter your site URL and click submit! It does not take long to bring up your results. Anto does not doubt that these tools to scan for website problems will keep you busy for a while.

#1 – Security for Everyone – https://securityforeveryone.com/

Security for Everyone is a security and vulnerability testing tool that offers both free and paid versions. As per their mission statement, they want to make cybersecurity understandable, affordable, and manageable for everyone. Security for Everyone can check for FTP backdoor’s, empty MySQL passwords, SSH V1 vulnerabilities, open ports, subdomains, and allowed HTTP methods, to name but a few. Lastly, you can trust the advice from Security for Everyone, as they have more than ten years of experience in the cybersecurity industry.

#2 – The Mozilla Observatory – https://observatory.mozilla.org/

Use the Mozilla Observatory is a comprehensive test tool that tests your site’s HTTP, TLS, and SSH. It also shows the results from other third-party tools such as SSL Labs, ImmuniWeb, and more. The HTTP tests include content security policy, Cookies, Cross-origin Resource Sharing, HTTP Public Key Pinning, HTTP Strict Transport Security, Redirection, Referrer-Policy, and subresource integrity X-Content-Type-Options, X-Frame-Options, and X-XSS-Protection.

Mozilla Observatory website scan
Mozilla Observatory website scan

#3 – GTMetrix – https://gtmetrix.com/

An equally great tool is GTMetrix. This tool provides website optimization information that can help you determine how fast your page loads. Most importantly, they tell you what you need to do to fix the problems. This tool uses Google PageSpeed and Yahoo! YSlow rulesets to determine the performance.

GTMetrix website scan
GTMetrix website scan

#4 – Key CDN Tools – https://tools.keycdn.com/

Do a website speed test, HTTP header check, HTTP/2 test, Brotli test, and more using the Key CDN Tools. Also, you can do other tests that will help you do an SSL Freak and TLS Logjam test and provide info about the possible fixes.

Key CDN Tools
Key CDN Tools

#5 – Web Page Test – https://www.webpagetest.org/

Also, the Web Page Test tool will do a speed test to your website from multiple locations using real browsers and real consumer connection speeds. At first glance, this tool rates your website’s first-byte time, keep-alive, and compression. But, it does offer other valuable analyses as well.

Web Page Test site scan
Web Page Test site scan

#6 – Seobility – https://www.seobility.net/en/seocheck/

The Seobility tool is undeniably useful for SEO. This outstanding tool offers an SEO, keyword, and ranking checker. In addition, the SEO tool enables you to check page response time, crawl-ability, descriptions, page quality, media, internal and external links.

Seobility website scan
Seobility website scan

#7 – Sucuri Site Check – https://sitecheck.sucuri.net/

Checking for malware is equally important. Use this scanner to check the website for malware, viruses, blocklisting status, website errors, out-of-date software, and malicious code.

Sucuri Site Check
Sucuri Site Check

#8 – Qualys SSL Labs – https://www.ssllabs.com/ssltest/

The Qualys SSL Labs tool will, of course, be on this list! Perform an in-depth analysis of your SSL web server on the public internet. Thus, this tool determines your site’s supported SSL protocols, cipher suites and attempts handshake simulations for different platforms.

SSL Labs website check
SSL Labs website check

#9 – Pentest-Tools – https://pentest-tools.com/website-vulnerability-scanning/

Pentest-Tools provides a scan that specifically determines vulnerabilities on your site. The tool scans your site’s server, communication security, HTTP headers, and more for vulnerabilities.

Pentest-Tools website scan
Pentest-Tools website scan

#10 – What’s My DNS – https://www.whatsmydns.net/

Equally important is the What’s My DNS tool to check your website’s DNS records against multiple name servers located in different parts of the world. This tool allows you to check your websites A, AAAA, MX, CNAME, TXT, and other DNS records.

WhatsMyDNS website check
WhatsMyDNS website check

#11 – REDBot – https://redbot.org/

REDBot is another excellent tool checks HTTP resources to see how they will behave and points out problems with suggested improvements.

REDBot lint
REDBot lint

Wrapping up

These tools will undoubtedly help you scan for website problems. And will most definitely help you make your website safer, faster, and accessible.

Why not post your favorite tool in the comments below? Anto Online always wants to hear from you! New tools will be added to the list if: they are free (or have a free version), is easy to use, do not spam you, and provide value.

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About Anto Online

Anto, a seasoned technologist with over two decades of experience, has traversed the tech landscape from Desktop Support Engineer to enterprise application consultant, specializing in AWS serverless technologies. He guides clients in leveraging serverless solutions while passionately exploring cutting-edge cloud concepts beyond his daily work. Anto's dedication to continuous learning, experimentation, and collaboration makes him a true inspiration, igniting others' interest in the transformative power of cloud computing.

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