Research Papers -- Architecting the Web in the Cloud Continuum -- DCM: Dynamic Client-Server Code Migration -- Code Vectorization and Sequence of Accesses Strategies for Monolith Microservices Identification -- HYAS: Hybrid Autoscaler Agent for Apache Flink -- Machine Learning for Web Engineering -- Optimizing ML Inference Queries under Constraints -- LiquidAI: Towards an Isomorphic AI/ML System Architecture for the Cloud-Edge Continuum -- Predicting Crowd Workers Performance: An Information Quality Case -- IoT and WoT Engineering -- WebAssembly in IoT: Beyond Toy Examples -- Applying Discrete Event Simulation on patient flow scenarios with Health monitoring systems -- User Privacy Engineering -- Streamlining personal data access requests: From obstructive procedures to automated web workflows -- In2P-Med: Toward the individual privacy preferences identity in the medical web apps -- User Behaviour Characterization -- Hierarchical Transformers for User Semantic Similarity -- User Identity Linkage via Graph Convolutional Network Across Location-Based Social Networks -- Emotions Intensity Prediction in Online Discussions Using Time Series Forecasting -- User Centered Technologies -- Speed up the Web with Universal CSS Rendering -- Collaborative Web Accessibility Evaluation: An EARL-based Workflow Approach -- In a Hurry: How Time Constraints and the Presentation of Web Search Results Affect User Behaviour and Experience -- A Taxonomy of User Behavior Model (UBM) Tools for UI Design and User Research -- Tools and Techniques for Advanced Web Engineering -- On the Energy-Efficiency of Hybrid UI Components for Mobile Cross-Platform Development -- Human-Friendly RDF Graph Construction: Which one do you chose? -- Waiter and AUTRATAC: Don't throw it away, just delay! -- Scraping Data from Web Pages using SPARQL Queries -- Web Engineering Practices and Experiences -- An empirical study of Web API versioning practices -- The Rise of Disappearing Frameworks in Web Development -- On the Popularity of Classical Music Composers on Community-Driven Platforms -- Topio: an Open-Source Web Platform for Trading Geospatial Data -- Demos and Posters -- Creating Searchable Web Page Snapshots using Semantic Technologies -- Choose your preferred life cycle and SofIA will do the rest -- SLA4OAI-Analyzer: Automated Validation of RESTful API Pricing Plans -- Towards a model-driven development of environmental-aware Web Augmenters based on open data -- Enhancing Web Applications with Dynamic Code Migration Capabilities -- Macaroni: Crawling & Enriching Metadata from Public Model Zoos.

This book constitutes the refereed proceedings of the 23rd International Conference on Web Engineering, ICWE 2023, held in Alicante, Spain, during June 6-9, 2023. The 18 revised full papers and 7 short papers presented in this book were carefully reviewed and selected from 77 submissions. They are organized in topical sections named: architecting the web in the cloud continuum; machine learning for web engineering; IoT and WoT engineering; user privacy engineering; user behaviour characterization; user centered technologies; tools and techniques for advanced web engineering; and web engineering practices and experiences.