Domain Age Checker in Go

Returns the registration date and the age in years and days.

client := ipapi.NewClient(ipapi.WithAPIKey(os.Getenv("IP_API_IO_KEY")))
ctx := context.Background()

age, err := client.DomainAge(ctx, "example.com")
if err != nil {
	log.Fatal(err)
}

fmt.Println(age.IsValid)               // true
if age.RegistrationDate != nil {
	fmt.Println(*age.RegistrationDate) // "1995-08-14"
}
if age.AgeInDays != nil {
	fmt.Println(*age.AgeInDays)        // 11000+
	if *age.AgeInDays < 30 {
		// treat brand-new domains as higher risk
	}
}

Check a slice of domains in one request (returns an error if empty).

batch, _ := client.DomainAgeBatch(ctx, []string{
	"example.com",
	"brand-new-domain.xyz",
})

for domain, age := range batch.Results {
	if age.AgeInDays != nil {
		fmt.Println(domain, *age.AgeInDays)
	}
}