SPEERO subject lines
42 subject lines averaging 58 characters.
| Picture | Sent (Eastern) | Subject | Characters | Preview text | |
|---|---|---|---|---|---|
| Oct 29, 2026 6:08 AM | Selection is the job now | 24 | Selection is the job now The Circus Austin recap on choosing what gets traffic, plus… | Oct 29, 2026 6:08 AM · 24 characters. Selection is the job now The Circus Austin recap on choosing what gets traffic, plus… | |
| Oct 15, 2026 8:55 AM | Your conversion rate dropped. Nothing on the site changed. · Resent | 58 | Your conversion rate dropped. Nothing on the site changed. Plus Speero's new Research… | Oct 15, 2026 8:55 AM · 58 characters. Your conversion rate dropped. Nothing on the site changed. Plus Speero's new Research… | |
| Oct 9, 2026 8:02 AM | Welcome to Experimentation Revolution | 37 | Welcome to Experimentation Revolution Latest blueprints, trends, news, podcasts, and blog… | Oct 9, 2026 8:02 AM · 37 characters. Welcome to Experimentation Revolution Latest blueprints, trends, news, podcasts, and blog… | |
| Oct 9, 2026 6:32 AM | Your conversion rate dropped. Nothing on the site changed. | 58 | Your conversion rate dropped. Nothing on the site changed. Plus Speero's new Research… | Oct 9, 2026 6:32 AM · 58 characters. Your conversion rate dropped. Nothing on the site changed. Plus Speero's new Research… | |
| Oct 1, 2026 12:05 AM | The most successful thing I've built in a long time | 51 | The most successful thing I've built in a long time Plus how to pitch AI test ideas to… | Oct 1, 2026 12:05 AM · 51 characters. The most successful thing I've built in a long time Plus how to pitch AI test ideas to… | |
| Sep 17, 2026 4:18 AM | Your A/B Test Result Is Not a 12-Month Forecast | 47 | Your A/B Test Result Is Not a 12-Month Forecast Plus A/B vs preference testing, the QBR… | Sep 17, 2026 4:18 AM · 47 characters. Your A/B Test Result Is Not a 12-Month Forecast Plus A/B vs preference testing, the QBR… | |
| Sep 10, 2026 3:25 PM | The AI system built to pass a data governance audit | 51 | The AI system built to pass a data governance audit Plus do you need A/A test blueprint… | Sep 10, 2026 3:25 PM · 51 characters. The AI system built to pass a data governance audit Plus do you need A/A test blueprint… | |
| Sep 3, 2026 5:48 AM | The AI system built to pass a data governance audit | 51 | The AI system built to pass a data governance audit Plus how to use AI for better… | Sep 3, 2026 5:48 AM · 51 characters. The AI system built to pass a data governance audit Plus how to use AI for better… | |
| Aug 27, 2026 7:20 AM | The Real Reason Your Org Ignores Test Results | 45 | The Real Reason Your Org Ignores Test Results Plus 3 questions every test should answer… | Aug 27, 2026 7:20 AM · 45 characters. The Real Reason Your Org Ignores Test Results Plus 3 questions every test should answer… | |
| Aug 20, 2026 3:03 AM | A/B Testing Was Never Supposed to Decide for You | 48 | A/B Testing Was Never Supposed to Decide for You Plus why conversion rate is not a website… | Aug 20, 2026 3:03 AM · 48 characters. A/B Testing Was Never Supposed to Decide for You Plus why conversion rate is not a website… | |
| Aug 19, 2026 8:29 AM | You already run experimentation. You're just not running it on AI. | 66 | You already run experimentation. You're just not running it on AI. The same rigor that… | Aug 19, 2026 8:29 AM · 66 characters. You already run experimentation. You're just not running it on AI. The same rigor that… | |
| Aug 6, 2026 3:04 AM | 37 Experimentation Tools, Verified. Tell Us Where We Got It Wrong. | 66 | 37 Experimentation Tools, Verified. Tell Us Where We Got It Wrong. Plus how AI is changing… | Aug 6, 2026 3:04 AM · 66 characters. 37 Experimentation Tools, Verified. Tell Us Where We Got It Wrong. Plus how AI is changing… | |
| Aug 4, 2026 3:54 AM | Your significance test has probably never been checked against a known answer. | 78 | Your significance test has probably never been checked against a known answer. Most… | Aug 4, 2026 3:54 AM · 78 characters. Your significance test has probably never been checked against a known answer. Most… | |
| Jul 31, 2026 6:09 AM | Your Significance Test Has Never Been Asked to Prove Itself | 59 | Your Significance Test Has Never Been Asked to Prove Itself Also,mabl scaling journey with… | Jul 31, 2026 6:09 AM · 59 characters. Your Significance Test Has Never Been Asked to Prove Itself Also,mabl scaling journey with… | |
| Jul 30, 2026 3:31 PM | Welcome to Experimentation Revolution | 37 | Welcome to Experimentation Revolution Latest blueprints, trends, news, podcasts, and blog… | Jul 30, 2026 3:31 PM · 37 characters. Welcome to Experimentation Revolution Latest blueprints, trends, news, podcasts, and blog… | |
| Jul 23, 2026 12:35 PM | AI didn't remove developers from testing. It removed the queue | 62 | AI didn't remove developers from testing. It removed the queue Also, why Netflix is… | Jul 23, 2026 12:35 PM · 62 characters. AI didn't remove developers from testing. It removed the queue Also, why Netflix is… | |
| Jul 23, 2026 7:51 AM | The lineup is set | 17 | The lineup is set Marty Cagan, Anthropic, Wayfair, and Microsoft on stage. Two hands-on… | Jul 23, 2026 7:51 AM · 17 characters. The lineup is set Marty Cagan, Anthropic, Wayfair, and Microsoft on stage. Two hands-on… | |
| Jul 16, 2026 1:59 PM | You're Not Testing. You're Guessing With Extra Steps. | 53 | You're Not Testing. You're Guessing With Extra Steps. Your team has the surveys, the… | Jul 16, 2026 1:59 PM · 53 characters. You're Not Testing. You're Guessing With Extra Steps. Your team has the surveys, the… | |
| Jul 10, 2026 2:29 AM | Your AI build deserves a room. Austin is it. | 44 | Your AI build deserves a room. Austin is it. One slide. One real system. Your ticket is… | Jul 10, 2026 2:29 AM · 44 characters. Your AI build deserves a room. Austin is it. One slide. One real system. Your ticket is… | |
| Jul 9, 2026 2:34 PM | Why Your Testing Roadmap Looks Thin, and It Has Nothing to Do With Ideas | 72 | Why Your Testing Roadmap Looks Thin, and It Has Nothing to Do With Ideas Plus how to ship… | Jul 9, 2026 2:34 PM · 72 characters. Why Your Testing Roadmap Looks Thin, and It Has Nothing to Do With Ideas Plus how to ship… | |
| Jul 2, 2026 3:38 PM | When a senior leader pushes back on your experiment results, they're not being irrational. You're just measuring the WRONG thing. | 129 | When a senior leader pushes back on your experiment results, they're not being irrational… | Jul 2, 2026 3:38 PM · 129 characters. When a senior leader pushes back on your experiment results, they're not being irrational… | |
| Jul 2, 2026 2:56 PM | At Circus London, someone walked in with an MCP server wired to a data warehouse. Nobody asked them to. | 103 | At Circus London, someone walked in with an MCP server wired to a data warehouse. Nobody… | Jul 2, 2026 2:56 PM · 103 characters. At Circus London, someone walked in with an MCP server wired to a data warehouse. Nobody… | |
| Jun 25, 2026 3:01 PM | Most growth agencies build programs that collapse the moment they leave | 71 | Most growth agencies build programs that collapse the moment they leave Plus understanding… | Jun 25, 2026 3:01 PM · 71 characters. Most growth agencies build programs that collapse the moment they leave Plus understanding… | |
| Jun 24, 2026 5:02 PM | Welcome to Experimentation Revolution | 37 | Welcome to Experimentation Revolution Latest blueprints, trends, news, podcasts, and blog… | Jun 24, 2026 5:02 PM · 37 characters. Welcome to Experimentation Revolution Latest blueprints, trends, news, podcasts, and blog… | |
| Jun 24, 2026 3:01 PM | Moderate at Circus Austin. Your ticket is on us. | 48 | Moderate at Circus Austin. Your ticket is on us. Open call for moderators and poster… | Jun 24, 2026 3:01 PM · 48 characters. Moderate at Circus Austin. Your ticket is on us. Open call for moderators and poster… | |
| Jun 18, 2026 3:02 PM | Most growth agencies build programs that collapse the moment they leave | 71 | Most growth agencies build programs that collapse the moment they leave Plus how to decide… | Jun 18, 2026 3:02 PM · 71 characters. Most growth agencies build programs that collapse the moment they leave Plus how to decide… | |
| Jun 18, 2026 2:13 PM | We're hiring, know any A-players looking for a new gig? | 55 | We're hiring, know any A-players looking for a new gig? Speero is hiring Sr… | Jun 18, 2026 2:13 PM · 55 characters. We're hiring, know any A-players looking for a new gig? Speero is hiring Sr… | |
| Jun 15, 2026 5:03 AM | Your Seat at Circus Austin 2026 | 31 | Your Seat at Circus Austin 2026 Where experimentation leaders go to figure out AI before… | Jun 15, 2026 5:03 AM · 31 characters. Your Seat at Circus Austin 2026 Where experimentation leaders go to figure out AI before… | |
| Jun 11, 2026 1:46 PM | AI fluency is table stakes. Judgment is what's going to get scarce. | 67 | AI fluency is table stakes. Judgment is what's going to get scarce. Plus a human-augmented… | Jun 11, 2026 1:46 PM · 67 characters. AI fluency is table stakes. Judgment is what's going to get scarce. Plus a human-augmented… | |
| Jun 6, 2026 3:42 AM | Strangers will decide what is experimentation, again, if we don't stop them | 75 | Strangers will decide what is experimentation, again, if we don't stop them Plus better… | Jun 6, 2026 3:42 AM · 75 characters. Strangers will decide what is experimentation, again, if we don't stop them Plus better… | |
| May 28, 2026 1:30 PM | Websites may become optional | 28 | Websites may become optional Plus how to know if OpenAI is eating your moat, the customer… | May 28, 2026 1:30 PM · 28 characters. Websites may become optional Plus how to know if OpenAI is eating your moat, the customer… | |
| May 21, 2026 3:44 PM | It's fast, it's cheap, but you CANT trust the output | 52 | It's fast, it's cheap, but you CANT trust the output Also how to use Github to build your… | May 21, 2026 3:44 PM · 52 characters. It's fast, it's cheap, but you CANT trust the output Also how to use Github to build your… | |
| May 14, 2026 1:17 PM | Two questions to ask before shipping every A/B test | 51 | Two questions to ask before shipping every A/B test Plus how LLMs change your website… | May 14, 2026 1:17 PM · 51 characters. Two questions to ask before shipping every A/B test Plus how LLMs change your website… | |
| May 7, 2026 4:27 PM | Is Your Testing Program a Sausage Factory? | 42 | Is Your Testing Program a Sausage Factory? Plus Statsig joining Amplitude, how to become a… | May 7, 2026 4:27 PM · 42 characters. Is Your Testing Program a Sausage Factory? Plus Statsig joining Amplitude, how to become a… | |
| Apr 30, 2026 12:53 PM | Will websites exist in a couple of years? | 41 | Will websites exist in a couple of years? Plus why process, not great tests create great… | Apr 30, 2026 12:53 PM · 41 characters. Will websites exist in a couple of years? Plus why process, not great tests create great… | |
| Apr 23, 2026 2:52 PM | If you tripled your test velocity tomorrow, would your roadmap actually change? | 79 | If you tripled your test velocity tomorrow, would your roadmap actually change? Plus why… | Apr 23, 2026 2:52 PM · 79 characters. If you tripled your test velocity tomorrow, would your roadmap actually change? Plus why… | |
| Apr 10, 2026 8:02 AM | Our team just demoed AI design workflows that could automate ~70% of the mockup process | 87 | Our team just demoed AI design workflows that could automate ~70% of the mockup process… | Apr 10, 2026 8:02 AM · 87 characters. Our team just demoed AI design workflows that could automate ~70% of the mockup process… | |
| Apr 3, 2026 4:44 AM | Your A/B test didn't make a decision. YOU made a decision. | 58 | Your A/B test didn't make a decision. YOU made a decision. Plus how to on Claude… | Apr 3, 2026 4:44 AM · 58 characters. Your A/B test didn't make a decision. YOU made a decision. Plus how to on Claude… | |
| Mar 28, 2026 5:59 AM | Check out who's coming at Circus London | 39 | Check out who's coming at Circus London Plus a 20% discount until the end of March | Mar 28, 2026 5:59 AM · 39 characters. Check out who's coming at Circus London Plus a 20% discount until the end of March | |
| Mar 26, 2026 9:01 AM | Stop asking "will AI replace agencies?" Start asking "how will my AI interact with theirs?" | 91 | Stop asking "will AI replace agencies?" Start asking "how will my AI interact with… | Mar 26, 2026 9:01 AM · 91 characters. Stop asking "will AI replace agencies?" Start asking "how will my AI interact with… | |
| Mar 26, 2026 5:53 AM | The people building this stuff will be at Circus London | 55 | The people building this stuff will be at Circus London Plus a 20% discount until the end… | Mar 26, 2026 5:53 AM · 55 characters. The people building this stuff will be at Circus London Plus a 20% discount until the end… | |
| Mar 19, 2026 1:04 PM | When Leaders Ignore Your Test Results and Follow Their Gut, They're Still Rational | 82 | When Leaders Ignore Your Test Results and Follow Their Gut, They're Still Rational Plus… | Mar 19, 2026 1:04 PM · 82 characters. When Leaders Ignore Your Test Results and Follow Their Gut, They're Still Rational Plus… |
Based on 42 emails received from Mar 19 to Oct 29, 2026. Times in US Eastern. How we collect