Poll Results: Your Favorite Page Title Separator

The Great Separator Debate: What the Data Says

Every SEO professional has an opinion about title tag separators. Some swear by pipes (|), others prefer dashes (-), and a few use colons (:) or arrows. But when did "I think this looks better" become a legitimate SEO strategy?

In this guide, we're sharing real test data that cuts through the theory and gives you measurable results to inform your title tag approach. The findings may surprise you--or confirm what you've suspected all along.

The Test Methodology

A comprehensive 3-month A/B test split 20 top-performing pages into test and control groups:

• Test group: Pipes changed to dashes
• Control group: Original pipes maintained
• Metrics tracked: Organic clicks, impressions, CTR, and Google rewrite frequency
• Timeline: 3 months to account for seasonal variations

This wasn't a quick-and-dirty test. The methodology was designed to capture meaningful data while controlling for external factors like algorithm updates and competitive changes. For a deeper dive into testing methodologies, learn about our approach to crawl budget optimization which complements title tag testing.

Koozai's A/B test methodology provides the foundation for these findings.

Key Finding: Pipes Beat Dashes on CTR

The most significant finding was that pages with pipes achieved a 0.91% average CTR compared to just 0.81% for pages with dashes. That's a 12% relative difference in click-through rate--substantial enough to impact organic traffic significantly over time.

This finding contradicts the common belief that Google "prefers" dashes. While Google's algorithm may have preferences about how it displays titles, user behavior tells a different story: searchers are more likely to click on titles using pipes.

For sites with 100,000 monthly organic impressions, that 12% difference could mean thousands more clicks per month--all without changing a single word of actual content. This CTR optimization is just one aspect of a comprehensive SEO strategy that drives sustainable organic growth.

Google Rewrite Rates: Dashes Win, But Does It Matter?

Here's where it gets nuanced. The test found that pages with dashes were rewritten by Google 30% of the time, while pages with pipes were rewritten 80% of the time. Dashes clearly align better with Google's title generation preferences.

But here's the critical insight: being rewritten by Google didn't hurt performance. Pages that were rewritten to use dashes still achieved higher CTR when they originally used pipes. The original title tag maintained enough of its structure to perform well, even after Google's algorithm made its modifications.

Google's rewrite behavior shouldn't be the primary factor in your separator choice--user response matters more than algorithmic preference. After all, you're optimizing for humans who click, not algorithms that index. Understanding how Google processes titles is part of our comprehensive web development best practices.

Koozai CTR and rewrite rate analysis

Why Pipes Outperform Dashes: The Psychology

Pixel Efficiency and Keyword Visibility

Pipes are narrower than dashes, taking up less horizontal space in SERP displays:

• Pipes use 4-6 pixels of width compared to 8-10 pixels for dashes
• This allows you to fit more keywords before truncation
• In competitive SERPs, this can mean the difference between showing your full title or having it cut off

When you're targeting competitive keywords, every character matters. The extra pixel efficiency of pipes can help your title display fully on more devices, ensuring your carefully crafted copy actually reaches potential visitors.

Visual Hierarchy and Scanning Behavior

Search users scan results in fractions of a second. The pipe creates a clean visual break that helps users quickly parse title components:

• Acts as a natural divider between main topic and brand name
• Helps users assess relevance at a glance
• Dashes can blend into surrounding text, especially on mobile

Eye-tracking research consistently shows that users make click decisions within seconds of seeing a search result. Anything that speeds comprehension without sacrificing clarity improves your odds of earning that click.

The Brand Recognition Factor

Many successful sites use a consistent format like Main Topic | Brand Name for all titles. This repetition builds familiarity over time. The pipe reinforces this brand pattern, while dashes can be mistaken for word separators within the title itself.

When searchers see your pipe-separated titles repeatedly, they begin to recognize your site as a consistent presence in their area of interest. This subtle branding effect contributes to higher CTR over time. Building consistent, recognizable signals across your digital presence is a core principle of our AI automation services that enhance user experience.

Stan Ventures pixel and visual analysis

The Accessibility Consideration

How Screen Readers Interpret Separators

Screen reader behavior varies by separator, which matters for accessibility:

• Pipes (|): Most read literally, sometimes inserting awkward pauses or verbalizing "vertical bar"
• Dashes (-): Generally read as a pause or hyphen, which flows more naturally
• Colons (:): Typically read as "colon" which can interrupt reading flow

For sites prioritizing accessibility compliance--like those in regulated industries or receiving federal funding--dashes may be the preferred choice. However, this should be weighed against CTR data showing pipes outperform dashes.

Making an Informed Choice

There's no single "right" answer--the best choice depends on your priorities:

• Pipes: Better for CTR optimization, visual scanning, competitive keyword strategies
• Dashes: Better for accessibility compliance, aligns with Google's preferences, flows better in audio

The key is making an informed decision based on your specific audience and requirements. Consider running your own test to see what works best for your visitors. Our team can help you design and implement tests that deliver actionable insights for your specific situation.

Stan Ventures screen reader analysis

Measuring What Matters: Testing in Your Own Analytics

Setting Up a Title Tag Test

Don't take our word for it--test with your actual audience:

1. Choose a significant sample: 10-20 pages with sufficient traffic for statistical significance
2. Create a clean comparison: Change only the separator, keeping all other title elements constant
3. Allow adequate time: Run tests for 4-6 weeks minimum to account for day-of-week and seasonal variations
4. Track multiple metrics: Look beyond rankings at CTR, clicks, and conversions
5. Document external factors: Note algorithm updates or competitive changes that might affect results

Interpreting Your Results

When reviewing your test data:

• Look for patterns consistent over time, not single-day spikes
• Ensure traffic sources remained stable during testing
• Consider confidence intervals when evaluating differences
• Don't change course based on minor fluctuations--wait for clear trends

If your test shows a clear winner with statistical significance, you have evidence to support a site-wide approach. If results are mixed, you may want to use different separators for different content types or audience segments. Our SEO services include comprehensive testing and analytics to help you make data-driven decisions.

Related: Learn more about crawl budget optimization and how technical SEO factors into your overall strategy.

Sources

1. Koozai: The Meta Title Showdown - Pipes vs. Dashes Test Results - Primary data source with 3-month A/B test results
2. Search Engine Journal: Google Changes More Than 61 Percent of Title Tags - Industry data on Google rewrite behavior
3. Stan Ventures: Pipe or Dash on Title Tag? - Analysis of pixel efficiency, accessibility, and user perception
4. Search Engine Land: Title Tags and SEO - Everything You Need to Know 2025 - Comprehensive guide on title tag best practices
5. Moz Beginner's Guide to SEO - Industry-standard reference for SEO fundamentals