Google Search Central
SEO, indexing, structured data and crawl guidance
Open official/reference website ↗These are independent external websites. KiranDigitalHub does not own or reproduce their content. Check each provider's current terms, API limits, attribution rules and update date before using data in a calculator or commercial tool. A link does not mean an API is connected or data is live.
Government/legal/financial information should be checked against the relevant official portal. Do not submit passwords, OTPs or confidential payroll data to third-party websites unless you trust the provider.
Google Search Console
Index coverage, sitemap and search performance
Open official/reference website ↗Google AdSense Help
AdSense policy, site readiness and monetization
Open official/reference website ↗MDN Web Docs
Browser APIs, JavaScript and accessibility references
Open official/reference website ↗Can I use
Browser compatibility checks
Open official/reference website ↗OWASP Cheat Sheet Series
Web security patterns
Open official/reference website ↗OWASP Top 10
Common web application risks
Open official/reference website ↗PHP Manual
PHP language and deployment documentation
Open official/reference website ↗MySQL Documentation
Database configuration and SQL references
Open official/reference website ↗Hostinger Help Center
Hosting, backups and File Manager
Open official/reference website ↗Hostinger Horizons Guide
Horizons project editing and publishing
Open official/reference website ↗Supabase Docs
Optional database/auth integration reference
Open official/reference website ↗OpenAI API Docs
AI integration reference; API key must stay server-side
Open official/reference website ↗Google AI for Developers
Gemini API documentation
Open official/reference website ↗ExchangeRate.host
Currency data provider reference; verify current plan/terms
Open official/reference website ↗Frankfurter
Reference FX API for supported currencies
Open official/reference website ↗World Gold Council
Gold market context and methodology
Open official/reference website ↗IBJA
Indian bullion-rate reference; check terms and timestamp
Open official/reference website ↗RBI
Official Indian financial/regulatory information
Open official/reference website ↗EPFO
Official EPF information and member services
Open official/reference website ↗ESIC
Official ESI information and services
Open official/reference website ↗Income Tax Department
Official income-tax portal and forms
Open official/reference website ↗GST Portal
Official GST services
Open official/reference website ↗DigiLocker
Official document wallet
Open official/reference website ↗India Code
Central legislation reference
Open official/reference website ↗Microsoft Support
Excel, Word and Office support
Open official/reference website ↗LibreOffice Help
Spreadsheet/document compatibility reference
Open official/reference website ↗SheetJS
Spreadsheet import/export library docs
Open official/reference website ↗PDF.js
PDF viewing library docs
Open official/reference website ↗FFmpeg Documentation
Audio/video processing reference; deployment limits apply
Open official/reference website ↗WebAssembly
Browser runtime compatibility context
Open official/reference website ↗W3C WAI
Accessibility standards and practical guidance
Open official/reference website ↗Web.dev
Performance and Core Web Vitals
Open official/reference website ↗PageSpeed Insights
Performance checks
Open official/reference website ↗Schema.org
Structured data vocabulary
Open official/reference website ↗EPFO Unified Member Portal
Member-facing EPF services; confirm the correct official portal before entering credentials.
Open official portal ↗GST Services
GST taxpayer services and official portal information.
Open official portal ↗National Portal of India
Government of India services and official information directory.
Open official portal ↗UMANG
Unified access to selected government services.
Open official portal ↗OpenAI API Reference
Official API documentation for building an embedded AI feature; not the ChatGPT consumer app.
Open developer documentation ↗OpenAI API Key Safety
Keep secret API keys on the server, never in browser JavaScript or public HTML.
Read official security guidance ↗Google Search Essentials
Official eligibility, technical and spam-policy guidance for Google Search.
Open official documentation ↗Google PageSpeed Insights
Measure page performance and Core Web Vitals; test mobile and desktop separately.
Run a performance test ↗Review links quarterly; remove redirects and broken links; record the date checked. Never promise that a third-party API is integrated just because its documentation is linked. Do not store API keys in HTML/JavaScript or public Git/ZIP files. For compliance calculations, show the applicable date/rule and ask users to verify against the official portal.