Technical SEO
Robots.txt builders, XML sitemap generators, redirect rules, HTTP status analyzers, and Core Web Vitals.
Robots.txt Generator
Generate valid, syntax-checked robots.txt files conforming to RFC 9309 standards with user-agent directives, allow/disallow paths, and sitemap references.
Robots.txt Tester & Validator
Test and debug any URL path against robots.txt directives to instantly verify whether Googlebot, Bingbot, or custom user-agents are Allowed or Blocked.
XML Sitemap Generator
Generate valid, Google-compliant XML sitemaps with `<urlset>`, `<loc>`, `<lastmod>`, `<changefreq>`, and `<priority>` tags.
XML Sitemap Validator
Validate XML sitemaps client-side for schema conformity, URL encoding errors, maximum URL thresholds (50,000 limit), and XML structure defects.
Sitemap Index Generator
Build parent `<sitemapindex>` XML files linking multiple post, category, product, and author sub-sitemaps for large websites.
Canonical Tag Checker & HTML Analyzer
Inspect HTML source code to audit `<link rel="canonical">` presence, absolute URL syntax, self-referential status, and duplicate tag errors.
Multi-Platform Redirect Generator
Generate clean, syntax-perfect URL redirects for Apache (.htaccess), Nginx, Cloudflare, Next.js, Vercel, Netlify, PHP, and HTML Meta Refresh.
301 Permanent Redirect Generator
Generate permanent HTTP 301 redirects to transfer full PageRank, link equity, and ranking signals to new URLs.
302 Temporary Redirect Generator
Create temporary HTTP 302 redirects for seasonal campaigns, maintenance pages, and A/B testing without transferring canonical indexation.
Apache .htaccess Redirect Generator
Generate Apache mod_rewrite rules, RedirectMatch patterns, HTTPS enforcement, and trailing slash normalization rules for .htaccess.
Nginx Redirect & Rewrite Generator
Create high-performance Nginx `rewrite` and `return 301` server block configurations for URL migrations and hostname canonicalization.
Meta Robots Tag Generator
Generate HTML `<meta name="robots">` directives with index/noindex, follow/nofollow, noarchive, nosnippet, max-snippet, and max-image-preview controls.
X-Robots-Tag HTTP Header Generator
Generate server-level HTTP header directives (X-Robots-Tag) to control indexation of PDFs, images, video files, and non-HTML assets.
Hreflang Tag Generator (Multi-Language & Regional SEO)
Generate ISO 639-1 language and ISO 3166-1 region hreflang annotations with x-default fallback for HTML, XML Sitemaps, and HTTP Headers.
Hreflang Tag Validator & Symmetry Checker
Audit hreflang tags for ISO code errors, absolute URL requirements, x-default presence, and reciprocal bidirectional return link symmetry.
Canonical URL Normalizer
Normalize raw URLs into canonical format by stripping tracking parameters (UTM, gclid), enforcing lowercase hosts, and standardizing trailing slashes.
URL Percent Encoder (RFC 3986)
Encode special characters, UTF-8 non-ASCII text, and query parameters into RFC 3986 percent-encoded URI strings.
URL Percent Decoder
Decode percent-encoded URL strings (%20, %2F, %3F) back into readable plain text and UTF-8 characters.
SEO URL Slug Generator
Transform article titles and headlines into clean, hyphen-separated, stop-word-free URL slugs optimized for search rankings.
HTTP Status Code SEO Reference & Guide
Interactive technical dictionary of HTTP status codes (200, 301, 302, 304, 404, 410, 500, 503) explaining Googlebot crawl mechanics and SEO equity.
Technical SEO Crawlability Checklist
Interactive 20+ point technical audit checklist covering robots.txt, sitemaps, server status codes, internal link architecture, and SSR rendering.
Search Indexability Audit Checklist
Interactive 20+ point audit checklist inspecting noindex directives, canonical integrity, soft 404s, HTTPS security, and structured markup.
Canonical Conflict & Cross-Signal Matrix
Detect conflicting indexing signals when Canonical tags clash with Robots noindex, 301 redirects, robots.txt disallows, or HTTP status codes.
URL Query Parameter SEO Analyzer
Categorize query parameters into tracking, faceted filters, sorting, and pagination to identify duplicate content and crawl budget risks.
HTML Lang & Text Direction Checker
Validate `<html lang="...">` attributes and `dir="ltr/rtl"` declarations against BCP 47 and WCAG accessibility standards.
Meta Viewport & Mobile-Friendliness Checker
Audit `<meta name="viewport">` configuration for responsive mobile layouts, scale restrictions, and WCAG accessibility zoom compliance.
Open Graph (OG) Tag Checker & Live Preview
Audit og:title, og:description, og:image, and og:url tags with real-time Facebook and LinkedIn social card feed simulation.
Twitter (X) Card Validator & Live Feed Preview
Validate twitter:card, twitter:title, twitter:image, and twitter:site tags with realistic X feed card rendering.
Robots.txt Generator & Syntax Validator
Create, edit, and validate robots.txt directives for Googlebot, Bingbot, GPTBot, and other web crawlers.
XML Sitemap Builder & URL Formatter
Transform lists of website URLs into valid, formatted XML sitemap files conforming to sitemaps.org protocols.
HTTP Status Code SEO Diagnostic Matrix
Interactive reference and diagnostic guide for 1xx, 2xx, 3xx, 4xx, and 5xx HTTP response codes and their exact SEO impact.
301 Redirect Generator (.htaccess & Nginx)
Generate clean 301, 302, HTTP to HTTPS, non-WWW to WWW, trailing slash, and directory migration rewrite rules.
Core Web Vitals & PageSpeed Budget Calculator
Calculate performance resource budgets for JavaScript, CSS, images, and fonts to meet Good thresholds for LCP, INP, and CLS.
XML Sitemap Index File Generator
Build parent `<sitemapindex>` XML files linking multiple category, post, and product sub-sitemaps.
Trailing Slash URL Redirect Generator (.htaccess / Nginx)
Enforce consistent trailing slash (`/page/` vs `/page`) server-wide to eliminate duplicate URL indexing.
HTTPS & WWW / non-WWW Redirection Enforcer
Generate master server rules to redirect HTTP to HTTPS and unify WWW vs non-WWW canonical hostnames in a single hop.
Robots.txt Disallow Path Builder
Professional, free client-side tool to calculate, validate, format, and optimize robots.txt disallow path builder for search engines.
Googlebot User-Agent Rule Generator
Professional, free client-side tool to calculate, validate, format, and optimize googlebot user-agent rule generator for search engines.
GPTBot AI Crawler Disallow Builder
Professional, free client-side tool to calculate, validate, format, and optimize gptbot ai crawler disallow builder for search engines.
ClaudeBot Crawler Allow / Disallow Rule
Professional, free client-side tool to calculate, validate, format, and optimize claudebot crawler allow / disallow rule for search engines.
CommonCrawl CCBot Rule Generator
Professional, free client-side tool to calculate, validate, format, and optimize commoncrawl ccbot rule generator for search engines.
Crawl Delay Directive Builder
Professional, free client-side tool to calculate, validate, format, and optimize crawl delay directive builder for search engines.
XML Sitemap Frequency Priority Calculator
Professional, free client-side tool to calculate, validate, format, and optimize xml sitemap frequency priority calculator for search engines.
XML Image Sitemap Node Builder
Professional, free client-side tool to calculate, validate, format, and optimize xml image sitemap node builder for search engines.
XML News Sitemap Format Builder
Professional, free client-side tool to calculate, validate, format, and optimize xml news sitemap format builder for search engines.
Sitemap Date W3C ISO-8601 Formatter
Professional, free client-side tool to calculate, validate, format, and optimize sitemap date w3c iso-8601 formatter for search engines.
301 Permanent Redirect Rule Builder
Professional, free client-side tool to calculate, validate, format, and optimize 301 permanent redirect rule builder for search engines.
302 Temporary Redirect Generator
Professional, free client-side tool to calculate, validate, format, and optimize 302 temporary redirect generator for search engines.
307 Temporary Redirect Strict Generator
Professional, free client-side tool to calculate, validate, format, and optimize 307 temporary redirect strict generator for search engines.
308 Permanent Redirect Modern Builder
Professional, free client-side tool to calculate, validate, format, and optimize 308 permanent redirect modern builder for search engines.
410 Gone Server Header Rule Builder
Professional, free client-side tool to calculate, validate, format, and optimize 410 gone server header rule builder for search engines.
404 Custom Error Page Directives
Professional, free client-side tool to calculate, validate, format, and optimize 404 custom error page directives for search engines.
HTTP to HTTPS Strict 301 Builder
Professional, free client-side tool to calculate, validate, format, and optimize http to https strict 301 builder for search engines.
WWW to Non-WWW Single Hop Rule
Professional, free client-side tool to calculate, validate, format, and optimize www to non-www single hop rule for search engines.
Non-WWW to WWW Single Hop Rule
Professional, free client-side tool to calculate, validate, format, and optimize non-www to www single hop rule for search engines.
Trailing Slash Enforcer Rule
Professional, free client-side tool to calculate, validate, format, and optimize trailing slash enforcer rule for search engines.
Trailing Slash Stripper Rule
Professional, free client-side tool to calculate, validate, format, and optimize trailing slash stripper rule for search engines.
Query String Clean 301 Redirect Rule
Professional, free client-side tool to calculate, validate, format, and optimize query string clean 301 redirect rule for search engines.
Directory Migration 301 Path Builder
Professional, free client-side tool to calculate, validate, format, and optimize directory migration 301 path builder for search engines.
TTFB Latency Rating Guide
Professional, free client-side tool to calculate, validate, format, and optimize ttfb latency rating guide for search engines.
Gzip & Brotli Compression Benefit Estimator
Professional, free client-side tool to calculate, validate, format, and optimize gzip & brotli compression benefit estimator for search engines.
HTTP/2 vs HTTP/3 Protocol Diagnostic
Professional, free client-side tool to calculate, validate, format, and optimize http/2 vs http/3 protocol diagnostic for search engines.
Server Header Signature Sanitizer
Professional, free client-side tool to calculate, validate, format, and optimize server header signature sanitizer for search engines.