87%
MatchBack rate
Pieces tied to a digital action within 30 days.
Chapter 04 — MatchBack & Analytics
Direct mail, attributed to the click.
Our proprietary MatchBack layer ties 87% of mailed pieces to a digital action within 30 days — turning every postcard into a measurable, accountable campaign with a third-party audited CPA of $34.10.
The Methodology
Three steps from mailbox to dashboard.
MatchBack is not a marketing claim — it is a trackable pipeline. Every piece we drop carries a unique, person-level tracking element that flows through a 30-day observation window and resolves into a revenue figure you can defend in a board meeting.
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No. 01
A unique code on every piece.
Each mailer is printed with a per-recipient tracking element — a personalized URL, a vanity QR code, or a dedicated promo code — generated by our data engineering team and merged at variable-data print time. No two pieces are identical, and every code resolves to a known household.
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No. 02
A 30-day digital observation window.
Once the USPS scans the tray at induction, we open a 30-day MatchBack window for every recipient. Site visits, product page views, add-to-carts, branded search, and direct type-in traffic are all captured at the person level — never bucketed into a vague "lift" claim.
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No. 03
Conversion events appended, revenue attributed.
When a tracked conversion lands inside the window — through Klaviyo, HubSpot, Shopify, or your custom pipeline — we append it to the original drop, calculate response rate, CPA, and revenue-per-piece, and ship the report. The 13% that does not match back is profiled, not ignored; it informs your next audience build.
- A
KPI header. Pieces mailed, MatchBack rate, CPA, revenue — pinned to the top of every report.
- B
Per-piece response lift. Every variant, creative, and list segment benchmarked against itself.
- C
Revenue attribution. Matched transactions shown at the household level, not aggregated to a vague mean.
- D
Recommended next drop. A drop date, a list, and a creative brief — proposed by your strategist before you ask.
The Artifact
The post-campaign report, before your standup.
Within 48 hours of your MatchBack window closing, a report lands in your inbox with the numbers your CMO is going to ask for — pieces mailed, response rate, CPA, attributed revenue, and a side-by-side against your last drop. Every figure is sourced. Every creative variant is its own row.
You do not have to ask what worked. The report tells you — and tells you what to send next.
See MatchBack in productionSourced, Not Asserted
KDO clients versus the DMA 2024 baseline.
The lift below is not a KDO claim — it is the gap between our 2024 audited client averages and the response-rate, CPA, attribution window, and reporting cadence baselines published by the Data & Marketing Association in their 2024 Response Rate Report.
Metric
KDO client avg. (2024)
DMA baseline (2024)
Lift
Avg. response rate (prospect house list)
5.8%
2.4%
2.4×
Audited cost-per-acquisition (postcard)
$34.10
$78.40 (est.)
−56%
Attribution window (digital match-back)
30 days, per-piece
14 days, aggregated
2.1×
Reporting cadence
Per campaign, 48h post-window
Quarterly roll-up
Per-drop
Sources: Data & Marketing Association, 2024 Response Rate Report (DMA Response Rate Report, June 2024); KDO Mailing client averages audited annually by a third-party media auditor, 2024.
The Numbers, At Display Scale
5.8%
Avg. response rate
On prospect house lists, vs. 2.4% DMA baseline.
$34.10
Audited CPA
2024 postcard campaigns, third-party audited.
9.2M
API-triggered mailings
Processed in 2024 alone, 99.94% on-time dispatch.
A Named Peer
Plan My Campaign“MatchBack turned our direct mail line from a brand-building bet into a measurable acquisition channel. Before KDO we were arguing about whether the channel worked at all. Now we are arguing about which segment to scale next — and we have the audited CPA to prove the answer.”