SendGrid 2.6 Second Email Deliverability Ad

This SendGrid ad nails it with one simple move: it uses a super specific claim. “Gets to the inbox in 2.6 seconds.” Not “fast,” not “instant”—2.6 seconds. That number grabs attention and builds instant trust.

Why It Works

• Specific numbers sound scientific and credible
• Adds measurable proof to a vague promise
• Triggers curiosity (“Wow, how do they do that?”)
• Feels believable because it’s oddly precise

Real Examples

• FedEx: “When it absolutely, positively has to be there overnight”
• Amazon Prime: “Get it tomorrow” beats “Fast shipping”
• Dominos: “Delivered in 30 minutes or less”
• Buffer: “10x faster social media scheduling”

Simple formula: vague promise → specific proof → instant credibility.