When a competitor's site feels faster or runs on a different server, you cannot see why unless you check both sites the same way. The Kwebby Site vs Site Comparison tool is a free website comparison tool that puts two domains in one side-by-side view: IP, SSL, HTTP status, final URL and server header. This guide explains what each row tells you, how to run a comparison, and where a technical comparison stops being useful. For more checks, browse the Free SEO Tools.
Key Takeaways
- The Kwebby Site vs Site Comparison tool compares two websites side by side on IP, SSL, HTTP status, final URL and server header.
- Enter your domain in the Site A field, a second domain in the Site B field, and click Compare Sites.
- The tool is free and needs no account.
- Compare like with like: homepage against homepage, product page against product page.
- Technical setup is one input to rankings. Content, links and search intent matter too, and no tool can guarantee a ranking.
- Use single-purpose tools such as the Domain Age Checker, Page Speed Checker and Backlink Checker for more detail on one metric.
What Is the Kwebby Site vs Site Comparison Tool?
The Kwebby Site vs Site Comparison tool is a free website comparison tool that shows two websites side by side. Enter two domain names and click Compare Sites to see IP, SSL, HTTP status, final URL and server header in one view. No account is required.
Think of it as a quick technical snapshot. It tells you how two sites are set up and how they respond, which makes it a good first step before a deeper competitor review.
Key Features and How It Works
The tool reads each domain with the same checks and lines the results up in one table, so differences are easy to spot.
Two Domains in One View
You type your site into the Site A field and a second site into the Site B field. Putting both in one table removes the guesswork of switching between two separate tests that may have run under different conditions.
IP and Server Info
An IP address is the numeric address of the server that answers for a domain. Two sites on the same address often share a server or a hosting provider. To see which other domains sit on an address, use the Reverse IP Domain Checker. To find the provider behind a site, use the Domain Hosting Checker.
SSL Status
The SSL row shows whether each site is set up with a certificate. Browsers warn visitors when a certificate is missing or invalid, so a gap here is worth fixing first. For expiry dates and certificate details on your own site, open the SSL Checker.
HTTP Status
An HTTP status code is the server's three-digit answer to a request. According to MDN, codes from 200 to 299 mean success, 300 to 399 are redirects, 400 to 499 are client errors and 500 to 599 are server errors. If your site returns a redirect or an error where a competitor returns a clean 200, investigate it. The Get HTTP Headers tool shows the full response.
SSL Expiry and Final URL
The SSL Expires row shows the date each certificate runs out. The Final URL row shows where a request to https:// plus the domain ends up after redirects, so you can see whether each site prefers www or non-www. The tool does not measure response time. For speed testing, use the Page Speed Checker.
Domains or Full URLs
You can type a bare domain such as example.com or paste a full URL. The tool keeps only the host name, so it always compares the two home pages over HTTPS.
Why Comparing Two Websites Matters
Comparing two sites turns a vague feeling ("they are faster") into a specific list of differences. It also gives you a benchmark: you can fix a gap, run the same comparison again and see whether it closed.
A technical comparison covers only part of the picture. The Search Engine Land SEO benchmarking guide recommends comparing keyword topics instead of whole domains and accounting for seasonality, because averages across an entire site can mislead. For rankings, look at links as well: the Backlink Checker shows who links to a site, and the Domain Age Checker shows how long a domain has existed.
Be realistic about outcomes. Matching a competitor's server setup will not move you past them by itself, and no tool can guarantee a ranking.
How to Use the Site vs Site Comparison Tool
- Open the Site vs Site Comparison tool.
- Enter your own domain, for example
example.com, in the Site A field. - Enter the domain you want to compare against, such as
competitor.com, in the Site B field. - Click Compare Sites.
- Read the table row by row and note every difference in IP, SSL, HTTP status, final URL and server header.
- Run the comparison again after you fix a gap to confirm it closed.
Best Practices for Comparing Websites
Compare Like With Like
The SavageAudit comparison guide advises matching equivalent pages before you compare anything. Pair a homepage with a homepage and a blog with a blog. Comparing your homepage to a competitor's heaviest product page produces misleading gaps.
Choose the Right Rival
The competitor who sells the same product is not always the site that beats you in search. Pick two or three sites that actually rank for your target queries and compare against each of them.
Repeat the Test
Status codes, redirects and certificates change when a site moves host or renews a certificate. Run the comparison again after any such change before you act on a gap.
Turn Gaps Into Tasks
Write every difference as a task. A missing certificate, a redirect chain or a slow server response each has a specific fix. Start with the easiest fix that closes the biggest gap.
Know the Limits
A side-by-side table shows setup, not content quality or brand strength. Treat it as one layer of a competitor review, not the whole review.
Common Use Cases
- Competitor check. Compare your site with the site that outranks you for your main keyword.
- Hosting review. Compare your current server setup with another site you admire before you change providers.
- Migration check. Compare an old domain and its replacement to confirm both respond correctly.
- Client reporting. Put a client's site next to a competitor in one table.
- First look at a site you may buy. Compare it with a similar site before you commission a deeper audit.
Related Kwebby Tools
- Domain Age Checker shows how long a domain has been registered.
- Page Speed Checker tests load performance in more depth.
- Backlink Checker looks at the links pointing to each site.
- Website Reviewer audits one site across security, performance, SEO and crawlability.
- SSL Checker reads certificate details and expiry.
Frequently Asked Questions (FAQs)
How can I compare two websites?
Enter both domain names in the Kwebby Site vs Site Comparison tool and click Compare Sites. The tool shows the two sites side by side so you can see differences in IP, SSL, HTTP status, final URL and server header.
What does the Site vs Site Comparison tool compare?
The tool header lists IP, SSL, HTTP status, final URL and server header for both sites in one view. For other checks, such as domain age or backlinks, use the single-purpose Kwebby tools.
Why compare two websites?
A comparison shows technical differences between your site and a competitor, and it gives you a benchmark to improve against. It also helps when you review a hosting change or an old and new version of a site.
Will matching a competitor's setup make my site rank higher?
Not by itself. Technical setup is one input, and rankings also depend on content, links and search intent. No tool can guarantee a ranking.
Is the Kwebby Site vs Site Comparison tool free?
Yes. The tool is free to use and needs no account.
Final Thoughts
Pick the one competitor who outranks you most often and run the Site vs Site Comparison today. Write down every difference, fix the easiest gap first, and repeat the comparison next week to see what changed. Then follow the SEO Audit Checklist to cover the content and link side that this table cannot show.