Free Email Link Checker
Validate all links in your emails, check for broken URLs, detect redirects, and ensure links aren't on spam blacklists.
Link Checker
Validate all links in your email HTML or paste a list of URLs to check
How Link Quality Impacts Email Deliverability
Email providers actively scan and test links in your messages. Link quality is a critical signal that affects inbox placement, sender reputation, and engagement rates.
Broken Links Trigger Spam Filters
Multiple 404 errors signal low-quality content. Providers like Gmail and Yahoo use link validation as a spam indicator - even a few broken links can hurt deliverability.
Redirect Chains Hurt Engagement
Long redirect chains (3+ hops) increase load times and confuse tracking. Some providers flag excessive redirects as suspicious behavior or cloaking attempts.
Slow Response Times Impact Placement
Links that take more than 2 seconds to respond hurt user experience metrics. Providers may lower engagement predictions for emails with consistently slow links.
HTTP Links Reduce Trust Signals
Non-HTTPS links are flagged as security risks. Modern email clients warn users about insecure links, reducing click-through rates and damaging sender reputation.
Blacklisted Domains Get Blocked
Links to domains on spam blacklists cause immediate deliverability problems. Even legitimate emails are rejected or sent to spam if they link to flagged domains.
URL Shorteners Need Verification
Generic shorteners (bit.ly, tinyurl) are often used in spam. Use custom domains for shorteners and ensure the destination URLs are clean and functional.
Link Checking Best Practices
Follow these best practices to ensure your email links support deliverability and provide the best user experience.
Always validate links immediately before sending campaigns. Links can break between tests and sends due to website changes, expired certificates, or server issues.
Every link in your emails should use HTTPS protocol. Non-secure HTTP links trigger browser warnings, reduce trust, and negatively impact engagement metrics.
Minimize redirects to improve load times and avoid provider suspicion. Each redirect adds latency and increases the chance of broken chains or timeouts.
Target response times under 1 second for all links. Slow servers hurt user experience and engagement metrics that providers use to evaluate email quality.
Verify that your destination domains aren't on spam blacklists. Even linking to a newly-flagged partner site can cause your emails to be blocked or filtered.
Replace generic shorteners with custom-branded domains (track.yourdomain.com). This builds trust, avoids spam flags, and maintains consistent branding.
Set up automated monitoring to catch broken links quickly. Many links break after sending due to website updates, expired domains, or configuration changes.
Common Link Validation Mistakes
Avoid these frequent errors that damage deliverability and user experience.
Links break frequently - always validate immediately before sending. A single broken unsubscribe link can cause spam complaints and deliverability issues.
All email links must use HTTPS. Modern browsers and email clients flag HTTP links as unsafe, hurting click rates and sender reputation.
Long redirect chains slow load times and trigger spam filters. Some providers interpret multiple redirects as cloaking or malicious behavior.
Links that timeout or take more than 2 seconds hurt engagement metrics. Providers track destination performance as a quality signal.
Linking to domains on spam blacklists causes immediate filtering. Regularly verify all destination domains against major blacklists.
Expired SSL certificates break HTTPS links and trigger browser warnings. Monitor certificate expiration dates for all linked domains.
Services like bit.ly and tinyurl are heavily abused by spammers. Use custom-branded link shorteners with your own domain for better deliverability.