How to read PageSpeed Insights and choose what to fix first
Separate lab scores from real-user data and turn a PageSpeed report into a focused website improvement plan.
Read the guide →The SOPIDOTECH blog
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Website performance
Domains and DNS
How to check DNS records when a website or business email stops working
Use A, AAAA, MX, TXT and nameserver records to investigate website and business email configuration.
Read the guide →How to check domain availability without mistaking a missing record for a guarantee
Check registry records, compare brand names and confirm purchase eligibility before choosing a business domain.
Read the guide →How to read WHOIS and RDAP records before a domain handover
Understand public registrar, status and nameserver information before moving a business domain.
Read the guide →Website SEO
How to audit website titles, descriptions and headings
Inspect the page HTML and fix unclear metadata, missing image descriptions and disconnected page structure.
Read the guide →Website troubleshooting
How to check HTTP headers when a website redirects or fails to load
Read response status, content type and caching information without treating headers as a full security audit.
Read the guide →Developer workflow
How to format and validate JSON without uploading your data
Fix JSON syntax errors, choose readable or compact output and protect confidential values during debugging.
Read the guide →How to find a CDN library link and use a specific version
Choose the correct CSS or JavaScript file, pin a library version and verify that dependencies load on your website.
Read the guide →How to Compare Two Text Files and Read the Differences
Compare two versions of text with highlighted additions and removals. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Compare JSON Objects and Find Changed API Fields
Compare JSON objects and find changed values, added keys and removed fields. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Convert JSON to CSV Without Losing Track of Columns
Turn an array of JSON objects into a previewable CSV table. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Convert CSV Rows to JSON Using Reliable Headers
Convert CSV rows into JSON objects using your column headers. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Format HTML for Easier Review and Maintenance
Format HTML with consistent indentation and readable nested elements. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Format CSS While Preserving Meaningful Rule Order
Format CSS rules, declarations and media queries for readable stylesheets. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Format JavaScript Without Executing the Code
Format JavaScript source without executing it. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Convert YAML to JSON for Configuration and API Work
Convert a YAML document into readable JSON with clear parsing errors. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Convert JSON to Readable YAML Configuration
Convert valid JSON into readable YAML for configuration workflows. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Crop, Resize and Export Images Without Unnecessary Quality Loss
Crop, resize and prepare images with transparency controls and PNG, JPG, WebP or PDF exports. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Convert Images to WebP and Check the Quality Trade-off
Convert supported images to WebP with dimension, crop and quality controls. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Generate a Favicon Pack and Install Website Icons
Create a favicon and app-icon pack from an image or initials. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Test JavaScript Regex Matches, Groups and Replacements
Test JavaScript regular expressions, capture groups and replacements. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Convert Unix Timestamps with the Correct Units and Timezone
Convert Unix timestamps and ISO dates with explicit units and timezones. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Encode and Decode UTF-8 Text with Base64 and Base64URL
Encode and decode UTF-8 text using Base64 or Base64URL. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Encode URL Parameter Values Without Breaking the URL
Encode and decode individual URL parameter values with UTF-8 support. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Format SQL Queries for the Right Database Dialect
Format SQL queries with dialect selection and consistent indentation. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Optimise SVG Safely and Compare the Visual Result
Optimise SVG text with a visual comparison and downloadable output. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Check Text Colour Contrast Against WCAG Thresholds
Measure foreground/background contrast with WCAG AA and AAA assessments. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →How to Inspect JWT Claims Without Mistaking Decoding for Verification
Inspect JWT headers, claims and expiry dates without sending the token to a server. Follow a practical example, understand the output and avoid common mistakes.
Read the guide →Branding
How to build a brand strategy for a small business
Turn your audience, offer and evidence into a practical brand brief before investing in design.
Read the guide →What is brand identity, and what should your business receive?
Understand logos, colour systems, typography, templates and the handover files needed to use your brand consistently.
Read the guide →Business websites
How to plan a small-business website that turns questions into enquiries
Plan the pages, proof, contact paths and ownership details before building a company website.
Read the guide →Business website launch checklist: content, tools, SEO and enquiries
Check the real visitor journey, indexable pages, hosting configuration and contact delivery before a company website goes live.
Read the guide →