Caleb Ulku explains how Google uses math-based analysis (similar to Latent Semantic Indexing/LSI) rather than reading comprehension to determine what content is about. Since Google can't evaluate writing quality directly, it identifies content topics by detecting related contextual words and patterns โ not synonyms or target keywords, but semantically associated terms (e.g., for 'Star Wars': Luke Skywalker, Jedi, Death Star). He argues that stuffing exact-match keywords is counterproductive, and that writers should instead naturally incorporate LSI keywords to signal topical relevance. He then demonstrates how the tool Page Optimizer Pro analyzes top-ranking competitor pages to provide specific word count targets and LSI keyword usage ranges, showing a real before/after example where optimization scores improved significantly after following its recommendations.
A mathematical method Google likely uses to analyze words, patterns, and relationships in content to classify and determine what a piece of content is about, without relying on exact keyword repetition.
View concept page →Words related to your target topic that are neither synonyms nor the keyword you are trying to rank for, but help Google's algorithm categorize and understand what your content is about.
View concept page →A model describing how Google ranks content in two phases: first using mathematical analysis and trust signals to get content onto page one, then using real user interaction data to determine whether content stays ranked.
View concept page →An SEO tool that analyzes competitor content to provide specific recommendations on word count, LSI keyword usage, and content comprehensiveness to help content rank on Google.
View concept page →The practice of excessively repeating an exact-match keyword throughout content, which Google's algorithm has learned to associate with low-quality content.
View concept page →Behavioral data from users, such as immediately hitting the back button after clicking a result, that Google uses to evaluate content quality and adjust rankings after initial placement.
View concept page →A numerical score provided by tools like Page Optimizer Pro that measures how well a piece of content aligns with the LSI keyword patterns of top-ranking competitor pages for a given keyword.
View concept page →The process of studying the content on the first page of Google search results to identify the word count, LSI keywords, and comprehensiveness patterns that Google's algorithm favors for a given topic.
View concept page →The primary guest and SEO expert featured in the video, founder of an AI SEO agency that developed the Core 30 local SEO methodology and scaled to 97 plumber clients using AI-driven content and local link-building strategies.
View concept page →Links from other websites that Google uses as indicators of content credibility and quality, particularly during the first stage of ranking before user data is available.
View concept page →A process of improving content in multiple rounds โ making changes based on LSI recommendations, monitoring ranking responses, and then refining again โ rather than optimizing all at once.
View concept page →Google uses mathematical algorithms, most likely something similar to LSI (Latent Semantic Indexing), to determine what content is about. LSI focuses on analyzing words, patterns, and relationships within content to classify information. Google's math looks at related words and word patterns that appear across the internet to categorize content into topics. For example, if content frequently mentions Luke Skywalker, Darth Vader, Jedi, and Death Star, Google's math can determine it's about Star Wars โ even without reading it like a human would.
LSI (Latent Semantic Index) keywords are words related to your topic that you aren't specifically trying to rank for. They are NOT synonyms โ for example, 'attorney' and 'lawyer' are synonyms, not LSI keywords. LSI keywords are also not the primary keyword you're trying to rank for. Instead, they are contextually related words that help Google's math classify what your content is about. For example, LSI keywords for 'attorney' might include: courtroom, trial, settlement, judge, decision, binding, and contract. For 'Star Wars,' LSI keywords would include Luke Skywalker, Princess Leia, Darth Vader, Death Star, and Jedi.
Google's math has learned that content with lots of exact-match keyword repetitions typically isn't very good content. So if you're trying to rank for 'Star Wars,' stuffing the keyword 'Star Wars' 50 times in your content would likely hurt rather than help you. Instead, you should naturally use related LSI keywords (like character names, locations, and concepts) that help Google's algorithm understand what your content is about without over-repeating the exact target keyword.
The two stages to ranking on Google are: (1) Getting onto the first page โ until you're on the first page, no one sees your content because users rarely go to the second page of search results. At this stage, Google relies on its mathematical algorithms to decide what your content is about, along with trust signals like links from other websites to determine quality. (2) Maintaining your ranking using user data โ once you have a statistically significant number of users interacting with your content, Google uses behavioral signals like bounce rate. If everyone who clicks on your content immediately hits the back button to find a different result, your content won't stay ranked for long.
Google can only use user behavior data (like whether visitors quickly leave a page or stay and engage) once a piece of content has already started ranking and receiving traffic. There needs to be a statistically significant number of users interacting with the content before that data becomes useful. So for brand new content with no rankings or traffic yet, Google must rely entirely on its mathematical algorithms and trust signals like backlinks to decide whether to rank the content.
Page Optimizer Pro is an SEO tool that analyzes competitor content to help you optimize your own content for Google rankings. It looks at factors like word count, LSI keyword usage, page sections, and comprehensiveness compared to pages already ranking on the first page of Google. It provides an overall optimization score (out of 100), and gives very specific recommendations including: target word count, which keywords to include in your search engine title, page title, and subheadings, how many times to use specific LSI keywords (with a target range), and which terms to avoid overusing. The goal is to help your content match the patterns Google's algorithm associates with high-quality, relevant content.
You should aim for a score of 100 in Page Optimizer Pro, especially for competitive keywords. In the example shown in the video, the page started with a score of 44.1 for the competitive keyword 'Lasik Eye Surgery Chicago,' which was considered not great. After optimizing the content based on Page Optimizer Pro's recommendations, the score increased by 30 points. The recommended approach is to optimize in chunks โ make improvements, monitor how rankings respond, and then go back and optimize further if necessary.
Google spends significant time analyzing the content already on the first page of search results, because it knows its users like that content and that it solves user problems. Google's math focuses on those top-ranking pages and the words they contain to find patterns. It then uses those patterns to identify new content that is similar and that its users may also find valuable. This is why tools like Page Optimizer Pro analyze first-page competitor content โ to reverse-engineer the word patterns and LSI keywords Google associates with quality content for a given topic.
If Google can't determine what your content is about, it will be buried in search engine results โ essentially invisible to anyone searching for your topic. As the video humorously puts it, only your mother will be able to find it. This is why it's critical to write content in a way that Google's mathematical algorithms can correctly analyze and categorize, using appropriate LSI keywords and following patterns that Google associates with quality content on your topic.
Several key changes were made to improve the page's Page Optimizer Pro score: (1) The word count was adjusted to closely match the target โ going from the original count to approximately 2,160 words (vs. the target of 2,167). (2) 'Lasik Eye Surgery Chicago' was added to the search engine title, where it had previously been missing. (3) The page title was updated to include recommended keywords. (4) LSI keywords in the main content were significantly increased โ usage numbers went from figures like 27, 33, 14, and 49 to much higher counts. (5) Specific terms that were recommended to be avoided or limited were adjusted. The overall optimization score increased by 30 points as a result.
Google doesn't publicly disclose exactly how it determines what content is about or how it ranks pages because if it did, everyone would abuse that knowledge to artificially rank higher. Keeping the algorithm secret prevents widespread manipulation and helps ensure that the search results Google serves to users are genuinely high-quality and relevant, rather than just optimized to game the system.
Backlinks serve as trust signals that help Google determine whether your content is good, particularly during the first stage of ranking โ before you have user behavior data. When other websites link to your content, it signals to Google that your content is credible and valuable. These trust signals, combined with Google's mathematical analysis of your content's words and patterns, are how Google decides whether to rank new content on the first page of results.
According to the video, the best way to analyze competitor content for length, LSI keywords, and comprehensiveness is to use a tool called Page Optimizer Pro. This tool examines pages already ranking on the first page of Google for your target keyword and provides specific, data-driven recommendations on word count targets, which LSI keywords to include, how many times to use them, and where to place them (title, subheadings, body content). This takes the guesswork out of content optimization and gives you a measurable score to work toward.
Not necessarily โ and yes, Page Optimizer Pro specifically addresses subheading keyword usage. In the example shown in the video for 'Lasik Eye Surgery Chicago,' Page Optimizer Pro actually recommended NOT using the exact target keyword in any subheadings. This illustrates that optimizing for Google isn't simply about repeating your target keyword everywhere โ it requires following data-driven recommendations about where specific terms should and shouldn't appear based on what's working for top-ranking competitor pages.
The recommended approach is to optimize content in chunks rather than all at once. Make a round of improvements based on your optimization tool's recommendations, then monitor how your rankings respond. If rankings improve, great โ but if there's still room to grow or rankings plateau, go back and make another round of optimizations. This iterative process allows you to test changes and understand their impact before making further adjustments.