Data quality: how to spot junk leads
A lead with a phone that doesn't exist isn't a lead: it's filler charged at opportunity price. Learn to spot junk before it burns your budget.
Not all junk is obvious. A list can look spotless in the spreadsheet and be full of dead phones, bouncing emails, made-up data and duplicates. Data quality is what separates a serious provider from one charging you for filler. Knowing how to spot it protects your investment.
The signs of a junk lead
- Phones that don't exist or never answer: the most expensive symptom.
- Bouncing emails or clearly fake ones.
- Incoherent data: name, area and profile that don't add up.
- Duplicates: the same contact several times, or sold to half the city.
- Age: old data disguised as fresh.
Measure the contact rate. If out of every 100 leads you reach very few, it's not bad luck: it's bad data quality. It's the metric that exposes filler fastest.
How to protect yourself before buying
- Start with a small test volume before scaling.
- Demand replacement of invalid ones in the SLA.
- Ask for guaranteed freshness and data origin.
- Measure the contact rate from day one.
The hidden cost of bad data
A junk lead isn't only money lost on price: it burns rep time, sinks team morale and pollutes your measurement (it looks like "leads don't work" when the problem is quality). Bad data poisons the whole funnel.
Replacement is the proof
A provider who replaces invalid leads without arguing trusts their data. One who resists knows what they're selling. That policy is one of the best quality indicators there is.
Cheap data is very expensive when half of it doesn't exist. You pay for contacts and get noise.
Clean data with replacement
At CompraLeads we care for freshness and data validity, and replace what doesn't meet the bar. Less filler, more real conversations. Write to contacto@compraleads.es.