Site Comparison

Igor Verentsov

Compare two websites side-by-side by SEO, security, speed and technical metrics. Get instant scores and find out which site performs better.

TL;DR:

Site Comparison — side-by-side audit of two URLs across 30+ metrics: HTTP status, SSL grade, TTFB, Core Web Vitals, security headers, SEO basics. Useful for competitive analysis and A/B verification before/after migration.

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Parallel analysisWe compare technical parameters of two sites simultaneously — no manual tab switching.

Competitive intelligenceDetermine the technology stack, speed and SEO profile of competitors in seconds.

Load SpeedCompare PageSpeed, TTFB and Core Web Vitals of your site with competitors directly.

TechnologiesCMS, CDN, analytics, chat widgets — the full stack of both sites on one screen.

Why teams trust us

Side-by

side comparison

CWV

speed & Web Vitals

<5s

result

Stack

CMS, CDN & tech

How it works

1

Enter two URLs

2

Both sites analyzed

3

Parameters side by side

Site comparison: competitive analysis in real time

The site comparison tool gives an instant parallel snapshot of technical and SEO parameters for two URLs. Perfect for pre-launch competitor comparison, A/B change analysis and technical audits.

Side-by-side comparison

All parameters are displayed side by side — see where your site falls short against competitors on every metric.

Speed metrics

LCP, CLS, FCP, TTFB — key performance indicators of both sites with visual delta comparison.

SSL and Security

We compare SSL certificate expiration, security headers and HTTPS configuration of both sites.

SEO parameters

Title, description, H1, canonical, robots, sitemap, schema — full SEO profile of two sites side by side.

Who uses this

SEO

competitive analysis

Marketers

site benchmarking

Developers

tech stack A/B

DevOps

environment comparison

Common Mistakes

Comparing with an irrelevant competitorCompare with direct competitors in your segment, not with the largest market players. Different scale gives irrelevant insights.

Looking at only one metricA slower PageSpeed doesn't mean losing — if a competitor ranks at the top, analyze the full profile.

Not accounting for region and languageSEO parameters can differ for different language versions. Compare same-language pages.

Drawing conclusions from a single checkA single snapshot may coincide with competitor maintenance. Repeat the comparison multiple times.

Best Practices

Compare the same page typesHomepage vs homepage, category vs category, article vs article — only then is the comparison valid.

Use results for task prioritizationIf a competitor leads you on speed — that's task #1. Start with the largest performance gap.

Track competitor dynamicsRegular comparison shows when a competitor improved their site. This is a signal for counter-action.

Complement with other toolsTechnical analysis is the foundation. Complement it with backlink profile and content strategy analysis of the competitor.

Get more with a free account

Site comparison history and API keys for automated benchmarking.

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Why Compare Websites

Comparing websites helps you understand your competitive position. See how your site stacks up against competitors in SEO, security, performance, and technical implementation. Identify gaps and prioritize improvements that will have the biggest impact.

What We Compare

SEO Score — Overall SEO health score based on 40+ checks across title, description, headings, schema markup, Open Graph, and more.
Security — HTTPS, HSTS, Content Security Policy, and other security headers.
Speed — Response time (TTFB), page size, compression, and more performance metrics.
Technical — Viewport, robots.txt, canonical tags, structured data, and other technical factors.

Related guides

Longer-form reading on this topic from the knowledge base.

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