Reviewed calculation support
Carriers with at least one reviewed rule that can produce a personalized cost estimate today.
DPDRoyal MailCanada PostAustralia PostNZ Post
Know exactly what is monitored and what can be calculated.
A carrier name in the catalogue is useful for discovery. It becomes actionable only when official evidence and a reviewed calculation rule are available.
Reviewed carrier sources
CarrierShock maintains 18 reviewed official source pages across 18 carriers. Published updates show the official source, review date and freshness status when available.
DHLFedExUPSDPDGLSRoyal MailUSPSPostNLCanada PostAustralia PostAramexSF ExpressJapan PostNZ PostAn PostSwiss PostLa Poste / ColissimoCTT
Searchable catalogue
Broader international and national carrier discovery without an unsupported monitoring or calculation promise.
Coverage grows with evidence
New calculation rules require an official source, a usable change amount, explicit applicability conditions, a stable test fixture and human approval. Information-only notices remain visible without inventing a cost estimate.
Current expansion priority includes DHL, FedEx, UPS, DPD, GLS, Royal Mail, USPS, PostNL. Priority means deeper calculation coverage is being built; it does not mean every notice or service for those carriers is calculation-ready today.
See the cost before it reaches the invoice.
Start with your carriers, routes, services and monthly parcel volume.
Start 14-day trial