SEOTesting vs SERP Split

SEOTesting measures the impact of SEO changes using Google Search Console data, with Google Analytics data available when connected. Its tests include time-based experiments, comparisons between test and control groups, and LLM tests; they can cover individual pages, groups of pages, or URL switches, and track organic traffic and ranking impact. Reports address click-through-rate opportunities, content insights, Search Console data, keyword cannibalization, and monthly SEO summaries. The platform also identifies pages receiving clicks from AI search and offers tools to find prompt patterns and measure AI-driven visits. Website monitoring can alert teams to XML sitemap and robots.txt changes. Connections include Google Search Console, optional Google Analytics 4 and Bing Webmaster Tools, and a Looker Studio connector. An API, MCP server, and Chrome extension provide additional ways to use its data and checks. The 14-day free trial includes full functionality for up to 30 sites and requires no credit card. Paid plans start at $50 a month for Single Site.

SERP Split is a free web tool for SEO holdout experiments on similar pages. Users upload a CSV containing URLs and clicks to create test and control groups through stratified sampling. They then upload daily traffic data with date, test_traffic, and control_traffic columns for analysis. The site says uplift and confidence are measured with Bootstrap Casual Inference. Results preview uplift, absolute clicks, a p-value, significance, and an exportable graph. Test examples include meta titles, H1s, internal links, templated copy, AI content, FAQs, schema, and performance changes. The recommended test period is about 21–30 days, with one main variable isolated to the test group. Guidance suggests 100,000 or more clicks across pages over roughly the previous 100 days, while lower volume may reduce confidence. The listed search data source is Search Console, and organic traffic impact is the focus. Tool data is processed locally and temporarily, not stored or transmitted for storage. Personal data is not collected, stored, or processed, though limited non-personal cookies measure aggregated usage.