What Is a Domain Age Checker?
A domain age checker looks up the original registration date of a domain to calculate how many years, months, and days it has been active. Domain age is one of several trust signals Google uses when evaluating a site's authority — older domains with consistent histories generally rank more easily than brand-new registrations.
Domain Age vs. Domain Authority: Key Differences
Domain age measures time since first registration. Domain Authority (DA) measures the strength of a domain's backlink profile. An expired domain is valuable when it has both: genuine age plus earned backlinks from its active years. Always check both metrics before acquisition.
Verifying Domain Age with Wayback Machine
RDAP/WHOIS creation dates can be misleading if a domain was dropped and re-registered. A 2015 registration date doesn't mean 10 years of continuous history. Cross-check with Wayback Machine: if the earliest snapshot is from 2020, the effective SEO age is only 5 years regardless of what WHOIS shows.