Validate robots.txt syntax — checks User-agent, Allow, Disallow, Sitemap, Crawl-delay directives. Identifies unknown directives, missing colons, and missing User-agent declarations. Everything runs locally in your browser — nothing is uploaded.
Validate .htaccess files against 30+ known Apache directives. Checks RewriteEngine, RewriteRule, ErrorDocument, Redirect, Header, Options, and block directives. Flags unknown directives.
Validate GraphQL schema syntax and structure. Detect missing root types, unknown type references, and common schema issues.
Validate DNS record syntax for A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA, and PTR records. Checks IP format for A/AAAA records and domain validity for MX records.
Produces a robots.txt file from a point-and-click form where you set allowed and disallowed paths, crawl delays, and sitemap references. Everything runs locally in your browser — nothing is uploaded.
Crawls any website and generates a standards-compliant XML sitemap. Supports JavaScript sites (React, Next.js, Vue), detects broken links, and provides SEO health insights.
robots.txt Validator lets you validate robots.txt syntax — checks User-agent, Allow, Disallow, Sitemap, Crawl-delay directives. Identifies unknown directives, missing colons, and missing User-agent declarations. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Validate robots.txt syntax — checks User-agent, Allow, Disallow, Sitemap, Crawl-delay directives. Identifies unknown directives, missing colons, and missing User-agent declarations. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, robots.txt Validator runs entirely on your device with no internet connection needed. All processing is done locally.
Validate robots.txt syntax — checks User-agent, Allow, Disallow, Sitemap, Crawl-delay directives. Identifies unknown directives, missing colons, and missing User-agent declarations. All processing runs locally — no code is sent to any server.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check the tool description for specifics.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. Formatters use well-known libraries (sql-formatter, Prettier-compatible patterns) and follow widely adopted rules.
security.txt Generator
Generate a security.txt file for your website following RFC 9116 standard. Specify contact email, security policy URL, encryption key, and expiry date for vulnerability disclosure.
Sitemap Validator
Validate XML sitemaps — checks urlset/sitemapindex root, loc entries, XML declaration, and URL count. Supports standard sitemap protocol formatting.