Image Optimization, SEO & Web Performance Guides
The ProUtilityApp Learning Center offers in-depth guides on image compression, WebP vs JPG comparisons, SEO optimization techniques, and website performance best practices for developers, marketers, and website owners.
All guides are written and maintained by the ProUtilityApp editorial team and updated regularly to reflect the latest SEO and web performance standards.
Image Optimization Guide for SEO & Website Performance (2026)
The ultimate guide to image optimization. Master compression, modern formats (WebP/AVIF), responsive images, and Core Web Vitals.
This learning center covers everything you need to know about image optimization, Core Web Vitals, and SEO-friendly performance techniques. Whether you're optimizing images for speed, improving LCP and CLS, or choosing modern formats like WebP and AVIF, these guides walk you through best practices step by step.
How to use this Learning Center
- •Start with the Image Optimization Guide to understand the fundamentals.
- •Explore Web Performance & Core Web Vitals to improve LCP, CLS, and INP.
- •Use Developer & Utility Guides to apply optimizations instantly using our tools.
Most Read Guides
Image Optimization & SEO
7Covers image formats, filenames, indexing, compression, and search visibility best practices.
The Ultimate Image Optimization Checklist for SEO (2026)
Don’t hit publish until you check this list. The 10 essential steps to ensure your images rank high and load fast.
Best Image Size for Website SEO (2026 Cheat Sheet)
Standardizing your image sizes is the key to a fast, professional website. Get the exact dimensions for heroes, blogs, and products.
How Google Indexes Images: Crawling, Computer Vision & Ranking Signals Explained
Learn how Google discovers, understands, and ranks images — from crawling and computer vision analysis to metadata, performance, and page authority signals.
Image Sitemaps Explained: How to Get Indexed Faster (2026)
Google can’t rank what it can’t find. Learn how to create and submit an image XML sitemap to boost visibility for your visual content.
Image File Names for SEO: Best Practices (2026)
Stop using IMG_1234.jpg. Learn how to rename your images for maximum visibility in Google Images and boost your page relevance.
Image Alt Text Best Practices (Examples + SEO Guide)
Master the art of writing effective al text for SEO and accessibility with real, actionable examples.
WebP SEO Myths in 2026: What Google Actually Cares About
Is WebP actually better for SEO? Does Google favor it? We debunk the common myths surrounding next-gen image formats and ranking.
Web Performance & Core Web Vitals
7Guides focused on LCP, CLS, INP, responsive images, and performance optimization.
WebP vs AVIF: Which is Best for Core Web Vitals in 2026?
The definitive battle of the next-gen formats. We benchmark WebP vs AVIF to see which one delivers the best LCP scores and user experience.
Best Image Format for Mobile Performance (2026 Optimization)
Mobile users have limited battery and data. Learn why AVIF is the new king of mobile speed and how to use srcset to serve it.
CLS Issues Caused by Images: How to Fix Layout Shifts
Images are the #1 cause of Cumulative Layout Shift (CLS). Learn how to reserve space using CSS aspect-ratio and width/height attributes.
Best Image Size for Mobile: A Complete Guide
Are your images killing your mobile speed? Learn how to size images correctly for iPhone and Android devices using srcsets.
Lazy Loading Images for SEO: The Ultimate Guide
Lazy loading can speed up your site by 50%, but doing it wrong can kill your rankings. Learn the right way to implement it.
How Image Compression Improves Core Web Vitals (With Examples)
Core Web Vitals influence search rankings through Page Experience signals. Learn how compressing your images can drastically improve LCP, reduce CLS, and boost mobile performance.
Best Image Format for Website Speed (2026 Guide)
Your complete guide to choosing the fastest image formats in 2026. Learn why WebP is the new standard and how to optimize for Core Web Vitals.
Developer & Utility Guides
3Practical workflows for developers and teams using browser-based tools.
Essential Developer Utilities: JSON, Regex, Time & Debugging Tools
Stop writing one-off verification scripts. Use browser-based tools to debug JSON, test regex, convert timestamps, and generate test data.
Text Manipulation Guide for Writers & Coders
Formatting text shouldn’t be a chore — it should be instant. Discover how to automate case conversion, word counting, and data cleaning.
The Ultimate PDF Management Guide (2026)
Master your documents. Learn how to merge, split, compress, and OCR your PDFs securely without uploading them to a cloud server.