REQUEST A CONVERSION STRATEGY SESSION   |   888-961-6604
Conversion Sciences
  • CRO Services
  • Guaranteed Redesign
  • About
  • Contact
  • Book a Consultation
  • Menu Menu

A Call to End CRO Forever

Conversion Optimization

The optimization industry is plagued most by a  poor acronym: CRO. Here is my reasoning for changing this damaging moniker.

The Importance of Acronyms

The three letter acronym (TLA) that defines an industry or organization is crucial to its success.

We all know of organizations who’ve been carried by their TLA. IBM comes immediately to mind. Here is a company that is universally recognized by its TLA. More recently, the search engine optimization industry has enjoyed significant success with the SEO TLA.

Industries with poor TLAs have fared much worse. Remember the WOM industry? Neither do we. In fact the entire social media industry has fallen on hard times due in part to the lack of a compelling TLA. SMM? Please! It’s basically a mumble.

Several industries have even consolidated their TLAs in an effort to get traction. Social media teamed up with local search and mobile to create Social Local Mobile, or SLM. When this didn’t work, they tried to slip a few more letters in. Hey, SoLoMo people, lower-case letters are still letters! This is really an acronym haiku.

Today, the TLA for the conversion optimization industry is CRO, or Conversion Rate Optimization. This is a sad moniker for a set of disciplines that offers so much promise. The conversion rate is the number of transactions or leads generated divided by the traffic for a given period of time. It is a metric of optimization, not the thing we are optimizing. Anyone can easily increase the conversion rate of any ecommerce site by cutting all prices in half. This would bankrupt almost any business, however.

Why Conversion Rate? It’s like naming our industry Bounce Rate Optimization (BRO) or Revenue Per Visit Optimization (RPVO). No, we don’t optimize conversion rates alone, so CRO is fundamentally flawed.

CRO Alternatives

Despite the cool allusion to a black carrion bird, it cannot stand. We can say we optimize for conversion, and could call the industry “CO”, but a quick letter count reveals that this is a two-letter acronym (TA). We spend most of our time optimizing websites, so website optimization, or WSO would work. But we have to come clean and admit that “website” is just one word, and “WO” is a TA. Furthermore, WSO is owned by the World Safety Organization.

We can upgrade our TAs to TLAs by adding ancillary words. Online Conversion Optimization gives us OCO. Since we’re really optimizing for revenue, we might embrace Online Revenue Optimization, or ORO. We could use the SoLoMo approach and call it OReO, but the makers of a certain sandwich cookie may take issue with this.

Join the Cross-out Protest

In addition, I recommend that you write CRO with the “R” crossed out anytime you use it on the web. This is our visible protest. Here is the HTML:

C<strike>R</strike>O

or

C<span style=”text-decoration:line-through;”>R</span>O

Use this in your blog posts, marketing or anywhere you want people to know that YOU DO NOT OPTIMIZE CONVERSION RATE ALONE.

  • Author
  • Recent Posts
Brian Massey
Brian Massey
Conversion Scientist™ at Conversion Sciences
Brian Massey is the Founder and Conversion Scientist™ at Conversion Sciences, a sought-after international speaker, and author of Your Customer Creation Equation. He is passionate about transforming websites through a steady diet of visitor profiling, purposeful content, analytics, and AB testing.

Expertise: conversion rate optimization, AB testing, marketing strategy, digital marketing, analytics, landing page design, computer programming, entrepreneurship

Speaking: IBM, Inbound, LeadsCon, Content Marketing World, Affiliate Summit, and more

Books and Training: Your Conversion Creation Equation, Video CRO, Marketing Videos that Convert, CRO Best Practices

As Seen On: ClickZ, Search Engine Land, Marketing Land, Conversion Sciences Blog, Intended Consequences podcast

Education: Texas A&M University, BS Computer Science and Management
Brian Massey
Latest posts by Brian Massey (see all)
  • Your Traffic Fell 30 Percent. Your Targets Did Not. - September 3, 2026
  • How to Filter Bot Traffic in Google Analytics With Ask Advisor - August 20, 2026
  • Using AI to Chat with your Online Business - July 10, 2026
  • 60SHARES
October 1, 2015/by Brian Massey
You might also like
Be interactive: Budget Secured Card Effective Luxury Landing Pages: Page Critique
Nail the top of the landing page for incredible results. Nail the Top of Your Landing Page for Surprising Results [VIDEO]
Be interactive: Budget Secured Card Austin Has The Highest Number of Website Optimizers per Capita
Be interactive: Budget Secured Card Christmas Conversion Principles: How To Choose A Christmas Card For Your Boss
Be interactive: Budget Secured Card Alaskan Discount Store Experiences Real Shopping Cart Abandonment
Be interactive: Budget Secured Card Testing, and Brand Awareness – For Further Study
27 replies
  1. PJ Christie
    PJ Christie says:
    October 1, 2015 at 12:12 pm

    I’ve been using SAC – Search and Convert.

    • Brian Massey
      Brian Massey says:
      October 1, 2015 at 4:25 pm

      Search is typically not part of CRO at all. Though they work very well together. http://conversionscientist.com/search-engine-marketing/why-ppccro-are-so-sweet-together/

    • vladmalik
      vladmalik says:
      October 5, 2015 at 5:48 pm

      Wow. That’s has a lot of urgency, like Search and Destroy or Search and Rescue.

      • PJ
        PJ says:
        October 5, 2015 at 6:56 pm

        I really like Jay Baer and his Convince and Convert slogan. I could really run with a TLA like SAC, even if its more than just straight up conversion.

  2. Peep Laja
    Peep Laja says:
    October 1, 2015 at 1:55 pm

    I like Growth Optimization – but missing the third letter. Growth Rate doesn’t make sense.

    • Brian Massey
      Brian Massey says:
      October 1, 2015 at 4:26 pm

      Online Growth Optimization? UXO?

      • vladmalik
        vladmalik says:
        October 5, 2015 at 5:47 pm

        I like the UX in there :) Actually, seriously like the ambiguity with “User Experience Optimization”

  3. Tom Bowen
    Tom Bowen says:
    October 1, 2015 at 2:42 pm

    Love the post Brian, and agree. We removed all references to “Conversion Rate Optimization” on our website a couple years ago (save one testimonial). And since our logo, created in 2002, is a prime TLA, I must hold tight to the stance that “Web Site” is allowed as two words!

    • Brian Massey
      Brian Massey says:
      October 1, 2015 at 11:54 pm

      I hope we’re not too late!

  4. Rob Lauer
    Rob Lauer says:
    October 1, 2015 at 4:33 pm

    The only thing I want to optimize is how much revenue I can generate from the darn site. All other measures are proxies and poor ones at that! Site Revenue Optimization? SRO…hmmm…I wish my site had SRO!

    • Brian Massey
      Brian Massey says:
      October 1, 2015 at 11:55 pm

      SRO: I like it. You should definitely get some SRO for your site.

    • Peep Laja
      Peep Laja says:
      October 2, 2015 at 2:17 pm

      But not all sites have direct revenue… lead gen, media etc – but those could be optimized too

      • vladmalik
        vladmalik says:
        October 5, 2015 at 5:46 pm

        I think from a math perspective, it doesn’t matter whether the metric is dollars, visits, actions, time, or something else. It’s always some average of numerical values, hence a “rate” of X per some unit. Any reason we can’t just say we’re always optimizing a “rate”. Or MO (metric optimization) – incidentally similar to MO = Modus Operandi (as in “a criminal’s MO”, behavior).

    • vladmalik
      vladmalik says:
      October 5, 2015 at 5:37 pm

      I think anything can be represented as a “rate”. Even if you’re tracking revenue, what you’re really optimizing is the rate of $ per visitor. So maybe CRO is too specific, but it’s always some sort of RO I think. Are there cases where the thing you’re optimizing is not a rate?

  5. Mark Patchett
    Mark Patchett says:
    October 2, 2015 at 3:46 am

    Haha love it!

  6. Taylor Rose
    Taylor Rose says:
    October 3, 2015 at 12:13 pm

    Since testing is often a critical tool to optimization I’ve liked Testing and Optimization (T&O). If ampersands are cheating in TLAs then perhaps Web Testing and Optimiation (WTO)? You could also do TnO which is a bit of a hat tip to Omniture days of Test and Target often abbreviated TnT.

    • Brian Massey
      Brian Massey says:
      October 5, 2015 at 10:28 am

      TnO is an interesting acronym. I’ve always said that conversion is just conversation without the TnA ;-)

    • vladmalik
      vladmalik says:
      October 5, 2015 at 5:34 pm

      Maybe Optimization and Testing (sequential)? You try to optimize then you test to see if you’ve optimized. OnT? OTT? (Optimization through testing)

  7. vladmalik
    vladmalik says:
    October 5, 2015 at 5:30 pm

    “Optimization” is broadest, and I think contains the defining theme… targeted design, raising key metric for a specific purpose. But the O word is fuzzy e.g., SEO is also optimization. Our sort of optimization includes ideation, visual design, research, and testing (= data collection + analysis). Something with “O” covers a lot. But does it miss the fact that at the end of the day, most of us are collecting data and making a comparison – a specific method to optimizing. It’s more like “Optimization Through A/B Testing”. I like “A/B Testing” – it’s more granular but still fairly defining of the whole (I think MVT, split testing, etc. it’s all about comparing some A to some B). But then where does Predictive Behavioral Targeting /etc fit in… it’s optimization and it’s data collection and comparison. But it’s a multidimensional hierarchical model instead of just A/B. And it’s not “testing” per se but constantly choosing and optimizing what each visitor sees. What acronym wouldn’t get outdated when the field changes? Maybe we don’t need 1 acronym to cover all related but ultimately different fields. But then most professional acronyms are vague when you consider the full breadth of the field. For now, I prefer “A/B testing” over “optimization” and throw in “analytics” in there somewhere. Does the world need another acronym? What do you guys think?

    • Brian Massey
      Brian Massey says:
      October 6, 2015 at 9:15 am

      “O” is broad, but what we do is broad. In any given day, we’ll design a new mobile control, write copy, develop an image, setup a test, spreadsheet another and audit an analytics implementation. We do a lot.
      The world doesn’t need another acroym, but it doesn’t seem to know that.

  8. Rick Dunn
    Rick Dunn says:
    October 7, 2015 at 4:40 pm

    I’d say what we’re really optimizing is their experience in order to improve conversions. The conversion is just how we measure our success or failure. The better a visitors experience, the more likely they are to convert. If you really want to go in a different direction how about User experience optimization (UXO or UEO) or Visitor experience optimization (VXO or VEO).

    • Brian Massey
      Brian Massey says:
      October 8, 2015 at 9:19 am

      I’ve always chaffed at calling our customers and prospects “users.” I like VXO. I’ll add it to the short list.

  9. Rich Page
    Rich Page says:
    January 13, 2016 at 10:15 am

    Great point! That is why I named my book ‘Website Optimization: An Hour a Day’ instead of using conversion rate optimization. The problem though I found was that too many people think that website optimization is SEO.

    • Brian Massey
      Brian Massey says:
      January 17, 2016 at 9:27 pm

      We have trouble with SEO confusion as well. And many people are searching for CRO, so the search engines are forcing us to perpetuate the existing TLA.

Trackbacks & Pingbacks

  1. The AB Testing Process that Empowers Marketers | Conversion Sciences says:
    January 15, 2018 at 2:00 pm

    […] Conversion rate optimization (CRO) is a systematic process for increasing the rate at which website visitors “convert” into leads and customers. […]

  2. How Do UX Professionals View Conversion Optimization? says:
    March 1, 2016 at 10:44 am

    […] this whole debate around the phrase conversion rate optimization because it focuses on conversion rate with no mention of revenue or any actual business […]

  3. Common Growth Hacking Myths (and How Growth Actually Works) says:
    February 9, 2016 at 1:02 pm

    […] term “growth hacking” much like the term “conversion rate optimization” is both a blessing and a curse. On one hand, it draws attention to the marketing potential […]

Comments are closed.

Search Search

Free Ad Alignment Report

Are your ads making promises that your landing pages aren't keeping. We'll pull your entire portfolio and grade the landing pages.

"*" indicates required fields

This field is hidden when viewing the form

Free for a limited time.

Conversion Optimization Course (FREE CRO Training)

Sign up and read the nine articles we will email you.

Latest Articles

  • CRO vs. AI. Who Wins? Images of Sahil Patel and Brian Massey Conversion Sciences LLC
    Your Traffic Fell 30 Percent. Your Targets Did Not.September 3, 2026 - 10:36 am
  • "The visitors that are eating your conversion rate" with bugs attacking the words "your conversion rate" Conversion Sciendes
    How to Filter Bot Traffic in Google Analytics With Ask AdvisorAugust 20, 2026 - 11:16 am
  • Brian Massey in a lab coat and a data monster in the background. The caption says "Talk to your analytics" Conversion Sciences LLC
    Using AI to Chat with your Online BusinessJuly 10, 2026 - 2:31 pm

Blog Article Categories

  • Advertising CRO
  • Artificial Intelligence
  • Conversion Marketing Strategy
  • Conversion Optimization
  • Conversion-Centered Design
  • CRO Tests | Multivariate | AB Testing
  • Ecommerce CRO
  • Landing Page Optimization
  • Lead Generation
  • Persuasion Science
  • Web Analytics
Conversion Sciences | Best Conversion Optimization Agency

FacebookTwitter/XPinterestLinkedInNews/RSS FeedPodcast

  • Conversion Optimization Services
    • Optimization Services
    • Guaranteed Redesign
    • Fully-managed CRO
    • CRO Audit
    • AI Optimization
    • CRO Training & Coaching
  • CRO Solutions
    • Conversion Solutions
    • eCommerce Optimization
    • Lead Generation Solutions
    • CRO for Website Redesign
    • CRO for Mobile Lead Gen
    • CRO for Advertising
  • About
    • About Conversion Sciences
    • Contact
    • Success Stories
    • CRO Resources
    • Blog
    • Your Customer Creation Equation Book
    • Free CRO Course
    • CRO Calculator
    • Press & Speaking Dates
Free — $10,000 Value

See Exactly Where Your Website Is Losing Revenue

In a free 30-minute session, a Senior Conversion Scientist will audit your site and deliver actionable recommendations.

🛡️ Backed by our Guaranteed ROI commitment — if we don't deliver results, you don't pay.
What you'll walk away with
✓

Personalized site audit of your highest-traffic pages with specific conversion gaps identified

✓

3–5 prioritized recommendations you can implement this week — whether or not you hire us

✓

Honest ROI assessment based on your traffic and conversion data

✓

1-on-1 with a Senior Conversion Scientist (avg. 8+ years CRO experience)

Intuit Boingo AMEX GBT + 300 more
Book your free session

"*" indicates required fields

You'll receive a calendar link within 1 business hour.
Free. No commitment. 30 minutes.

"At present, we see around 10X ROI. We're truly happy with what Conversion Sciences has brought." — StewMac

© Copyright 2007 - 2026 • Conversion Sciences • All Rights Reserved
Conversion Sciences® and Conversion Scientist® are
federally registered trademarks of Conversion Sciences LLC.
Any unauthorized use is expressly prohibited.
  • Privacy Policy
  • Terms of Service
  • Disclaimer
  • Cookie Policy
  • Security
  • Jobs
Link to: Cognitive Biases, Data Scientists, Great Landing Pages [For Further Study] Link to: Cognitive Biases, Data Scientists, Great Landing Pages [For Further Study] Cognitive Biases, Data Scientists, Great Landing Pages [For Further Study] Link to: Driving eCommerce Sales Through Online Quizzes Link to: Driving eCommerce Sales Through Online Quizzes Driving eCommerce Sales Through Online Quizzes
Scroll to top Scroll to top Scroll to top