AI, Python, and Google Colab Automate Hreflang XML Sitemap Creation at Scale
A recent project successfully leveraged AI, Python, and Google Colab to automate the creation of hreflang XML sitemaps, transforming a complex manual process into a scalable workflow. This initiative aimed to streamline SEO architecture for more than a dozen multilingual websites across various regional domains and languages, including multiple English dialects, Italian, Japanese, Spanish, Thai, French, and Korean. Historically, mapping thousands of URLs for cohesive hreflang XML sitemaps demanded specialized software or extensive manual spreadsheet work, a challenge now addressed through custom AI-driven scripting.

A recent project utilized AI tools, Python, and Google Colab to develop a scalable workflow for building hreflang XML sitemaps. The objective was to align the SEO architecture for over a dozen websites, spanning three businesses, eight regional domains, and multiple languages. Previously, mapping thousands of URLs for hreflang XML sitemaps would have required significant manual effort or specialized software.
Google Gemini was employed to create a custom Python script, handling the complex task. The project demonstrates how AI can automate processes that once consumed substantial time, with a focus on practical, time-saving applications.
The challenge involved mapping thousands of URLs across multilingual websites to generate accurate hreflang XML sitemaps. Instead of a manual approach, the process began by asking Google Gemini for a strategic approach rather than just a script. This led to a multi-step, data-driven methodology.
The recommended approach included crawling websites to gather live URLs and their metadata. Subsequently, Python within Google Colab would process this raw data. The strategy suggested an initial exact match clustering, followed by an advanced semantic AI model, such as SentenceTransformers, to perform fuzzy matching on translated pages using their titles and normalized URLs.
Following this strategy, a crawler, specifically Screaming Frog, was used to spider all regional websites. This generated a unified comma-separated values (CSV) file containing live URLs, status codes, title tags, and H1s. A critical step highlighted was the necessity to filter the CSV to include only indexable content before feeding it to the AI script, ensuring data quality.
Google Colab provided a cloud-based Jupyter notebook environment, facilitating the writing, pasting, and execution of the Python code without the need for local installations or environmental setups.
According to Search Engine Land, this project exemplifies how AI can be effectively applied to technical SEO tasks, delivering value by streamlining recurring data-processing requirements.


