URL Checker

What This URL Checker Analyzes

Paste any URL and get a complete breakdown of how the page performs across four critical areas:

• SEO Health: Title tags, meta descriptions, H1 tags, canonical URLs, and indexability status
• Social Previews: How your link appears when shared on Facebook, Twitter, and LinkedIn
• Performance: Response times, TTFB, DNS lookup, TLS handshake, and server location
• Security: SSL certificate status, security headers, and vulnerability checks

SEO Analysis

Title Tags

Title tags appear in search results and browser tabs. They're one of the strongest on-page ranking signals. Our URL checker verifies your title is:

• Between 30-60 characters (optimal for search display)
• Present and not empty
• Unique and descriptive

Meta Descriptions

Meta descriptions don't directly affect rankings but significantly impact click-through rates. A good description is 120-160 characters, includes a clear value proposition, and encourages clicks.

H1 Tags

Each page should have exactly one H1 tag that clearly describes the page content. Our checker flags missing H1s and helps ensure proper heading structure.

Canonical URLs

Canonical tags prevent duplicate content issues by telling search engines which URL version is authoritative. This matters for pages accessible via multiple URLs, parameter variations, or HTTP/HTTPS and www/non-www variants.

Indexability

The checker analyzes robots.txt rules and meta robots tags to determine if search engines can crawl and index your page. You'll see clear warnings if anything blocks indexing.

Social Media Previews

When someone shares your URL on social media, Open Graph and Twitter Card tags control what appears. Without them, platforms guess—often poorly.

Open Graph Tags

Open Graph controls how links display on Facebook, LinkedIn, and most other platforms. Essential tags include:

• og:title — Title shown in the share card
• og:description — Summary text beneath the title
• og:image — Preview image (recommended: 1200×630px)
• og:url — Canonical URL for the content

Twitter Cards

Twitter uses its own card format. Our site checker verifies:

• twitter:card — Card type (summary or summary_large_image)
• twitter:title and twitter:description
• twitter:image — Image for the tweet preview

Performance Metrics

Page speed affects both user experience and search rankings. Our URL checker breaks down exactly where time is spent:

• DNS Lookup: Time to resolve domain to IP address. Slow DNS? Consider a faster provider or DNS caching.
• Connection Time: TCP connection establishment. Affected by server location relative to users.
• TLS Handshake: SSL/TLS negotiation for HTTPS. Modern TLS versions and CDNs reduce this.
• Time to First Byte (TTFB): Time until server starts responding. Under 200ms is good. This reflects server processing speed.
• Total Time: Complete request including body download.

Server Information

The checker also reveals hosting details: server IP and location, hosting provider, CDN detection (Cloudflare, Fastly, Vercel, etc.), and server software (Nginx, Apache).

Security Analysis

Security headers protect your site and visitors from common attacks. Our checker evaluates four critical headers:

Content Security Policy (CSP)

CSP prevents cross-site scripting (XSS) by controlling which resources can load. It restricts scripts to trusted sources and blocks inline execution.

X-Frame-Options

Prevents clickjacking by controlling whether your page can be embedded in iframes. Set to DENY or SAMEORIGIN for protection.

X-Content-Type-Options

Set to nosniff to prevent browsers from MIME-type sniffing, which can lead to security vulnerabilities.

Strict-Transport-Security (HSTS)

Forces HTTPS connections, preventing protocol downgrade attacks. Essential for sites handling any sensitive data.

SSL Certificate

The checker verifies your SSL certificate is valid, trusted, and not expiring soon. Expired certificates trigger browser warnings that destroy user trust.

How to Use This Website Checker

1. Enter a URL: Paste any web address (with or without https://)
2. Click Check: Analysis takes 2-5 seconds
3. Review results: Navigate the tabs for SEO, Social, Performance, and Security details
4. Fix issues: Address any warnings or missing elements

Pro tip: Check your pages after any significant changes, and periodically audit competitor sites to see what they're doing right.

Quick Optimization Checklist

SEO Essentials

• Unique title tag (30-60 characters) on every page
• Compelling meta description (120-160 characters)
• Single, descriptive H1 tag
• Canonical URL set correctly
• Page is indexable (no accidental noindex)

Performance

• TTFB under 200ms
• Use a CDN for global reach
• Enable compression (gzip/brotli)
• Optimize images and enable caching

Security

• Valid SSL certificate (not expiring soon)
• All four security headers configured
• HSTS enabled for HTTPS enforcement

Frequently Asked Questions