Link preflight checker
Paste URLs, upload a QR code image, or drop in a PDF. Instant checks run free — the $3 report covers all 10 checks including redirect chains, SSL certs, and mobile load.
What gets checked in the full report
Destination resolves
Confirms the final URL returns HTTP 200. Catches 404s, 500s, and parked domains before they reach print.
Full redirect chain
Follows every hop and logs status codes. Flags chains longer than 3 hops and detects infinite loops.
HTTPS & SSL certificate
Checks the cert is valid, not expired, not self-signed, and that the domain matches.
Mobile-friendly
Loads the page with an iPhone user-agent and checks for a viewport meta tag — critical for QR scan traffic.
UTM tracking parameters
Warns when utm_source, utm_medium, or utm_campaign are missing so print traffic is properly attributed in GA4.
Page load time
Measures time-to-first-byte from the server. Slow pages lose QR scanners before they convert.