Podcast advertising insights

The Castlytics Blog

Practical guides on attribution, ROI measurement, and getting the most from your podcast ad spend.

Product UpdateAgencies

Castlytics Now Has a Dedicated Agency Plan — Multi-Client Workspaces, White-Label Reports, and More

Creator attribution just got a lot more useful for marketing agencies. Castlytics now supports multiple client workspaces, white-label reporting, and password-protected share pages — all under one login.

March 25, 20265 min read
Setup GuideTag Manager

How to Add Castlytics to a Server-Side Tag Manager

Step-by-step guide to integrating Castlytics with server-side Google Tag Manager (sGTM). Send page views, conversion events, and promo code data from your server container — no client-side script required.

March 23, 20268 min read
ProductAttribution

QR Codes for Creator Campaigns: Track Every Scan Back to the Creator That Drove It

Castlytics now generates branded QR codes for every campaign tracking link. Here's why QR codes are the missing attribution signal for video content — and how to use them with your creators.

March 18, 20266 min read
Creator MarketingBudget Planning

How Much to Spend on Creator Marketing: A Budget Planning Guide for Brands

How do you set a creator marketing budget that isn't a guess? This guide covers allocation frameworks, per-channel benchmarks, testing budgets, and how to use attribution data to scale spend with confidence.

March 17, 202610 min read
AttributionDark Social

Dark Social Attribution: Tracking Creator Conversions That Never Click

Most creator-driven conversions never touch a tracked link. They come from branded search, direct navigation, and word of mouth. Here's how to measure the full impact of creator campaigns — including the part your analytics tool can't see.

March 17, 202611 min read
InstagramInfluencer Marketing

Instagram Reels Sponsorship Tracking: A Brand's Attribution Guide

Instagram Reels sponsorships convert differently than feed posts or Stories. This guide covers how to track Reels creator campaigns accurately using promo codes, vanity paths, and multi-signal attribution.

March 17, 202610 min read
TikTokInfluencer Marketing

TikTok Influencer Attribution: How to Track TikTok Creator Campaigns

TikTok drives real conversions — but almost none of them come from link clicks. Here's how to build a reliable attribution setup for TikTok creator campaigns using promo codes, vanity paths, and post-purchase surveys.

March 17, 20269 min read
GrowthPodcast Advertising

Why Founders Don't Understand Their Growth Channels (And Keep Paying For It)

Most founder-led growth strategies are built on gut feel dressed up as data. Here's why podcast and creator advertising attribution breaks down at the decision-making layer — and what to do about it.

March 16, 20267 min read
AttributionGrowth

You Probably Don't Know Where Your Users Actually Come From

A practical guide to setting up multi-signal attribution for creator advertising — tracking links, vanity paths, promo codes, and post-purchase surveys — so you can finally answer the question every founder asks.

March 14, 20267 min read
AttributionCreator Marketing

Attribution Models for Creator Ads: First Touch, Last Touch, and What Actually Works

Which attribution model fits creator advertising? First-touch, last-touch, and linear all give different answers. Here's how to choose — and why most creator advertisers should use last-touch with a long window.

March 13, 202612 min read
StrategyCreator Marketing

Creator Ad Fatigue: How to Spot It Early and What to Do About It

Even the best podcast and YouTube sponsorships see ROAS decline over time. Here's how to identify creator ad fatigue early, what causes it, and how to manage it across your portfolio.

March 13, 202614 min read
AnalyticsCreator Marketing

Creator Partnership Metrics: The Numbers That Actually Predict Long-Term Value

Downloads, impressions, and even ROAS can be misleading when evaluating creator partnerships. Here are the metrics that predict whether a creator relationship is worth continuing.

March 13, 202613 min read
CACROI

What's a Good CAC for Podcast and Creator Ads?

CAC benchmarks for podcast, YouTube, and newsletter creator ads by product category. Plus: how to calculate CAC accurately when attribution is incomplete.

March 13, 202611 min read
E-commerceCreator Marketing

E-commerce Creator Ad Strategy: A Playbook for Scaling What Works

The e-commerce brands winning at creator advertising share a common set of practices: offer structure, creator selection, attribution setup, and a scaling playbook. Here's how they do it.

March 13, 202613 min read
Podcast AdvertisingCreative

Host-Read vs. Pre-Produced Podcast Ads: Which Performs Better?

Host-read endorsements consistently outperform produced spots on listener trust and conversion rates. Here's the data and what it means for your ad creative strategy.

March 13, 202610 min read
Podcast AdvertisingROI

How Much Does Podcast Advertising Cost in 2026?

CPM rates, minimum buys, agency fees, and what actually drives podcast ad pricing. A complete guide for brands considering podcast advertising for the first time.

March 13, 202610 min read
ROASROI

How to Calculate ROAS for Creator and Influencer Campaigns

ROAS for creator campaigns is more nuanced than paid social. Attribution gaps, delayed conversions, and halo effects all distort the number. Here's how to calculate it accurately.

March 13, 202613 min read
Podcast AdvertisingStrategy

How to Choose Which Podcasts to Advertise On

Download counts are a distraction. Audience alignment, host credibility, and conversion history matter more. A practical framework for evaluating podcast advertising opportunities.

March 13, 202611 min read
Influencer MarketingROI

How to Measure Influencer Marketing ROI Accurately

Most brands measure influencer marketing wrong. Here's a practical framework using tracking links, promo codes, and post-purchase surveys to get accurate ROI numbers.

March 13, 202611 min read
ShopifyPromo Codes

How to Track Promo Codes in Shopify for Creator Campaigns

Shopify's built-in discount reports don't connect promo codes to campaigns or creators. Here's how to properly track creator promo codes in Shopify for attribution-grade reporting.

March 13, 202611 min read
Podcast AdvertisingCreative

How to Write a Podcast Ad Script That Converts

The best podcast ad scripts follow a proven structure: hook, problem, solution, social proof, offer, and CTA. Here's a framework with examples you can adapt.

March 13, 202611 min read
Promo CodesInfluencer Marketing

How to Track Influencer Sales With Promo Codes (And Why It's Never the Full Picture)

Promo codes are the most popular influencer attribution method — and the most incomplete. Here's how to use them correctly and what else you need for accurate influencer attribution.

March 13, 202613 min read
LTVCAC

LTV:CAC for Creator Campaigns — Why Most DTC Brands Get It Wrong

Most brands evaluate creator ads on first-purchase ROAS alone. Here's why LTV:CAC is the more important metric and how to calculate it when you have incomplete attribution data.

March 13, 202613 min read
Multi-ChannelAttribution

Multi-Channel Creator Attribution: Tracking Podcast, YouTube, and Newsletter Together

Running a creator across multiple channels? Here's how to measure podcast, YouTube, and newsletter campaigns in a unified attribution view — without double-counting conversions.

March 13, 202611 min read
DTCAttribution

Multi-Touch Attribution for DTC Brands: A Practical Guide

DTC brands struggle most with multi-touch attribution across paid social, email, and creator ads. Here's a framework that works without custom data engineering.

March 13, 202612 min read
NewsletterSponsorship

Newsletter Sponsorship Attribution: How to Measure What's Working

Newsletter ads often outperform on click-through but underperform on trust and conversion. Here's how to track newsletter sponsorships and calculate real ROI for email-based creator placements.

March 13, 202611 min read
Podcast AdvertisingCPM

Podcast Ad CPM Rates: What You Should Expect to Pay in 2026

Host-read 60-second mid-roll ads at $25–50 CPM. Pre-roll at $15–25 CPM. Here's what podcast ad CPM rates look like in 2026, what affects them, and whether they're worth it.

March 13, 202611 min read
DTCPodcast Advertising

Podcast Advertising for DTC Brands: What Actually Works

DTC brands dominate podcast advertising for good reason. Here's how to structure your show selection, offers, attribution setup, and scaling decisions as a direct-to-consumer brand.

March 13, 202610 min read
SaaSPodcast Advertising

Podcast Advertising for SaaS Companies: A Practical Guide

Podcast ads work for SaaS — but only when you get the attribution and offer structure right. Here's what high-converting SaaS podcast advertisers do differently.

March 13, 202611 min read
Podcast AdvertisingStrategy

The 7 Most Common Podcast Advertising Mistakes (And How to Avoid Them)

From choosing shows by download count to skipping attribution setup — here are the mistakes brands make with podcast ads and exactly how to avoid them.

March 13, 202612 min read
Podcast AdvertisingOptimization

How to Optimize a Podcast Ad Campaign Mid-Flight

You don't have to wait for a campaign to end to make improvements. Here's how to read early attribution signals, cut underperformers, and double down on what's working.

March 13, 202613 min read
ShopifyInfluencer Marketing

Shopify Influencer Marketing: Track, Measure, and Scale Creator Campaigns

How to connect your Shopify store to creator campaign tracking — discount codes, conversion data, and customer quality metrics for influencer-driven sales.

March 13, 202613 min read
YouTubeInfluencer Marketing

How to Track YouTube Sponsorship Conversions

YouTube sponsorships need different attribution than podcast ads. Lower click-through rates, custom links, and promo codes mean you need a multi-signal approach to get accurate conversion data.

March 13, 202610 min read
AnalyticsAttribution

Clicks Are a Lie Your Analytics Tool Keeps Telling You

Click-through rates feel like progress. But for podcast and creator advertising, clicks are one of the least reliable signals available. Here's what to measure instead.

March 12, 20266 min read
AttributionPodcast Advertising

Castlytics vs Bitly: They're Not Even Competing for the Same Thing

Bitly shortens links. Castlytics tells you which creator drove the sale. Here's why comparing them misses the point — and what you actually need to measure podcast and YouTube ad ROI.

March 10, 20265 min read
GDPRPrivacy

Podcast Attribution and GDPR: What You Need to Know

Running podcast ads in Europe? Here's how first-party attribution works within GDPR requirements — and which attribution signals don't require consent at all.

March 10, 20267 min read
ROIAttribution

How to Measure Podcast Ad ROI (The Right Way)

Most brands sponsoring podcasts have no idea if their ads are working. Here's a practical framework for measuring podcast advertising ROI using attribution tracking.

March 5, 20264 min read
Podcast AttributionTechnical

Podcast Attribution vs. Pixel Tracking: What's the Difference?

Pixel-based attribution works great for display and social ads. For podcast advertising, it's the wrong tool entirely. Here's what to use instead.

March 3, 20267 min read
Vanity URLsPodcast Advertising

Vanity URL Best Practices for Podcast Advertisers

Vanity URLs are standard practice in podcast advertising, but most brands use them in a way that captures only a fraction of the traffic they generate. Here's how to do them properly.

February 24, 20267 min read
AttributionAnalytics

First Touch vs Last Touch vs Linear: Podcast Attribution Models Explained

Which attribution model gives you the most accurate picture of your podcast ad performance? We break down first touch, last touch, and linear attribution — and when to use each.

February 18, 20264 min read
ShopifyIntegration

How to Connect Shopify to Your Podcast Attribution Tool

Shopify integration automates podcast ad attribution by syncing orders and promo code data directly. Here's what connects, why it matters, and how to set it up.

February 18, 20266 min read
Promo CodesAttribution

Promo Code Attribution: How It Works and When to Use It

Promo code attribution is the most reliable signal in podcast advertising. Here's how it works, how to set it up correctly, and how to combine it with link tracking.

February 17, 20267 min read
SurveysAttribution

How to Use a Post-Purchase Survey for Creator Attribution

A post-purchase 'How did you hear about us?' survey captures creator ad sales that every other attribution method misses. Here's how to set it up and use the data.

February 11, 20267 min read
Consumer BehaviourPodcast Attribution

How Podcast Listeners Actually Buy After Hearing an Ad

Understanding the real purchase journey of podcast listeners — and why it breaks most attribution tools — is the key to measuring podcast advertising correctly.

February 10, 20267 min read
Attribution ModelsConfiguration

What Is an Attribution Window and How Should You Set It?

The attribution window is one of the most important and most-ignored settings in podcast advertising. Get it wrong and you'll systematically undercount your best campaigns.

February 3, 20267 min read
Influencer AttributionCreator Marketing

Influencer Attribution: How to Track Sales Back to Creators

Influencer attribution is harder than social media platforms make it look. Here's a practical multi-signal approach that actually captures what creator campaigns drive.

January 28, 20267 min read
PrivacyCookieless Attribution

Podcast Attribution Without Third-Party Cookies

Third-party cookies are dying. Here's how modern podcast attribution works without them — and why first-party attribution is actually more accurate.

January 27, 20266 min read
Podcast AdvertisingB2B

The Best Podcasts to Advertise On in 2026 (For B2B and SaaS Brands)

A curated guide to high-performing podcast ad placements for B2B software companies and SaaS brands — with real data on audience quality and conversion potential.

January 22, 20264 min read
ROIReporting

How to Prove Podcast Ad ROI to Your Finance Team

Finance teams want hard numbers, not anecdotes. Here's how to build an airtight case for podcast advertising using attribution data your CFO will trust.

January 21, 20267 min read
Conversion TrackingSetup Guide

How to Set Up Podcast Conversion Tracking (Step by Step)

A practical step-by-step guide to setting up podcast conversion tracking on your website. Install the tracking script, create campaigns, add conversion events, and verify everything works.

January 20, 20267 min read
ROASBenchmarks

Podcast ROAS Benchmarks by Channel and Niche (2025 Data)

What is a good ROAS for podcast advertising? Real benchmarks by channel type, niche, and product category to help you evaluate your campaigns against industry norms.

January 14, 20266 min read
Podcast AttributionConversion Tracking

Why Most Podcast Advertisers Are Undercounting Conversions

Link-only podcast attribution captures only 30-40% of actual podcast-driven sales. Here's where the rest go and how to track them.

January 13, 20266 min read
Podcast AttributionGetting Started

The Complete Guide to Podcast Attribution in 2025

Everything you need to know about podcast attribution: why it's hard, the four signal types, attribution models, and how to set it up step by step.

January 6, 202611 min read