Google August 2023 Core Update: Search Changes And CSV Indexing [Explained]

The August 2023 Core Update affected all website traffic and rankings. The update rolled out completely. This was the second Core update of that year. The previous one took place in March. Two smaller review updates also occurred in February and April.

With the August 2023 Core Update, Google updated its Search Central documentation. It added CSV files to its index. Webmasters reworked their SEO strategies again. Google Search Central finished the rollout process for the August 2023 Core Update.

According to the Google Search Status dashboard, the process took Google approximately 16 days and three hours.

The previous Google Core update rolled out in March 2023. This major release followed smaller mini updates. Those updates occurred in February and April of the same year.

This final update focused heavily on product reviews. Specifically, it integrated the EEAT quality system to rank review posts. This system measured content based on:

• Experience.
• Expertise.
• Authoritativeness.
• Trustworthiness.

The Evolution Of CSV File Indexing

Google’s addition of CSV file indexing opened up major new visibility options. However, it also presented immediate technical SEO responsibilities for webmasters.

Googlebot actively crawled and indexed publicly accessible .csv formats. Because of this, raw data sheets, customer templates, or internal exports left unprotected surfaced globally in standard user search results.

Google historically interacted with CSV files. However, a major difference existed in how Google processed them then.

Previously, Google only processed CSV files indirectly through Dataset structured data. Starting in 2018, a .csv file surfaced only in specialized search features, like Google Dataset Search.

This happened only if a webmaster manually defined it. The webmaster used explicit schema markup on an HTML page.

During that update, Google indexed standalone CSV files natively as independent URLs in standard search results.

Googlebot discovered, crawled, and displayed a raw .csv file directly in standard web searches. It did this even if the file had absolutely no schema markup or HTML page hosting it.

Historical Context Of Tabular Data

However, the use of CSV file tabular data went way back to 2018. This is what the original documentation said:

“Datasets are easier to find when you provide supporting information such as their name, description, creator, and distribution formats are provided as structured data… Here are some examples of what can qualify as a dataset:

• A table or a CSV file with some data.
• An organized collection of tables.
• A file in a proprietary format that contains data.
• Images capturing data.
• A collection of files that together constitute some meaningful dataset.
• A structured data object formatted for external tool processing.”

Apart from this, other things include files relating to machine learning, such as trained parameters or neural network structure definitions. And anything that looks like a dataset to you.

The Impact August 2023 Core Update On The SEO Industry

The update caused major volatility across the SEO industry. Many websites experienced sudden drops in organic traffic and keyword rankings.

The algorithm heavily favored brands that demonstrated real, hands-on experience. As a result, niche affiliate blogs lost significant visibility to large, established e-commerce platforms.

The update also changed how search results appeared. Google reduced the visibility of FAQ rich snippets for most websites. This change forced SEO professionals to rewrite their schema strategy.

Additionally, the new CSV indexing rule triggered urgent security audits. Digital agencies rushed to check their clients’ servers for exposed data sheets. The entire industry shifted its focus away from automated content and toward strict technical data protection.

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