Browser-only utility

Robots.txt Tester, private by default

Check crawl rules before publishing important pages. Paste robots.txt content, choose a user agent, and test a URL path without tempboxs fetching or storing the rules.

Test pasted robots.txt rules

Paste robots.txt content, choose a crawler, and test whether a public URL path appears allowed or blocked without sending rules to tempboxs.

Test result

Paste robots.txt rules to test a path.

The tester runs locally and does not fetch robots.txt from a server.

Rules

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Agents

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Sitemaps

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robots.txt rules are parsed locally in your browser. This tester does not fetch live robots files and does not upload pasted rules to tempboxs.

How to use robots tester safely

Why robots.txt matters for public pages

robots.txt is a plain-text file that tells cooperative crawlers which paths they should avoid. It is commonly used to keep private utility routes, APIs, duplicate pages, or low-value generated paths out of crawling.

For AdSense, SEO, and AI discovery work, the public pages you want reviewed should not be accidentally blocked. A single broad Disallow rule can hide tools, guides, or policy pages from crawlers even when the pages are otherwise well written.

What this tester checks

The tester parses User-agent, Allow, Disallow, Sitemap, and Crawl-delay lines from pasted rules. It finds rules that match the selected crawler, compares matching paths, and reports the longest matching Allow or Disallow directive.

It does not fetch live robots.txt, verify HTTP headers, render JavaScript, or prove that every search engine will interpret edge cases identically. Use it as a fast local check before running live crawler tools.

  • Test a path such as /tools/meta-tag-analyzer or /blog/example
  • Compare wildcard rules with named crawlers such as Googlebot
  • See the line number and directive that matched
  • Notice parser warnings for malformed lines
  • Count Sitemap and Crawl-delay directives in the pasted file

Practical crawlability workflow

Before submitting a site for review or launching a new utility page, paste the current robots.txt file, test the new public URL, and confirm that important tool, blog, privacy, terms, transparency, and contact pages are allowed.

Keep private temporary inbox message routes and internal APIs out of search results with page-level noindex and route design. Use robots.txt for crawl guidance, not as the only privacy control.

Why people use this tool

robots.txt rules and tested paths are parsed locally in your browser. tempboxs does not fetch live files or receive pasted rules.

Catch accidental blocks

Test whether public pages, tools, blog posts, or sitemap paths appear blocked by Disallow rules.

Compare crawlers

Switch between Googlebot, Bingbot, generic wildcard crawlers, or a custom user agent.

Local rule parsing

Paste rules and test paths in the browser without requesting your staging or production robots file.

Guides from the blog

Learn more about privacy, tracking, passwords, and safer signups.

AdSense Checklist

Review content quality, policy pages, ad placement, crawlability, and technical files before AdSense checks.

ads.txt Checker

Generate a Google AdSense ads.txt line and check pasted authorized-seller records locally before publishing.

UUID Generator

Generate random UUID v4 identifiers in your browser, copy one value, or create a small batch for testing.

Timestamp Converter

Convert Unix timestamps, milliseconds, ISO dates, and local-readable times locally in your browser.

Meta Analyzer

Paste page HTML to inspect title tags, meta descriptions, canonical URLs, robots directives, Open Graph tags, and JSON-LD locally in your browser.

Schema Generator

Generate JSON-LD schema markup for articles, FAQ pages, web pages, and browser tools locally before publishing.

OG Preview

Draft Open Graph and Twitter card preview tags locally for articles, tools, landing pages, and social shares.

llms.txt Generator

Generate an llms.txt draft for AI discovery with public pages, useful tools, safety notes, and crawling guidance.

Sitemap Generator

Generate sitemap XML from public URLs and check duplicate or invalid entries locally before publishing.

JWT Decoder

Decode JWT headers and payloads locally in your browser, inspect claims, and learn what still needs verification.

Strength Checker

Check password length, character variety, common patterns, and estimated guess resistance locally in your browser.

Pixel Checker

Paste email HTML to find likely tracking pixels, remote images, and marketing links locally in your browser.

YAML to JSON

Convert common YAML snippets into formatted JSON locally in your browser for configs, docs, and API examples.

User Agent Parser

Parse browser, operating system, device, engine, and bot hints from user agent strings locally in your browser.

Header Analyzer

Paste raw email headers to inspect sender fields, authentication results, and delivery hops locally in your browser.

URL Parser

Parse a URL into protocol, origin, hostname, port, path, query parameters, hash, and decoded components locally in your browser.

URL Encoder

Encode URL text into percent-escaped values or decode encoded URLs locally in your browser.

URL Cleaner

Clean tracking parameters from links, decode common redirect URLs, and inspect domains locally in your browser.

DNS Records

Look up common DNS record types, purposes, examples, and setup notes locally in your browser.

UTM Builder

Build campaign URLs with UTM source, medium, campaign, term, and content parameters locally in your browser.

JSON Formatter

Format, minify, and validate JSON locally in your browser with clear error feedback.

HTML Entities

Encode HTML-sensitive characters or decode named and numeric entities locally in your browser for docs, blog posts, comments, and support replies.

Regex Tester

Test JavaScript regular expressions, flags, matches, indexes, and capture groups locally in your browser.

MIME Types

Look up common file extensions, MIME types, categories, and delivery notes locally in your browser.

Markdown Previewer

Preview Markdown headings, lists, links, inline styles, and code blocks locally in your browser before publishing docs or guides.

Privacy Checklist

Generate a browser-only privacy checklist for signups, support tickets, link sharing, and publishing workflows.

Word Counter

Count words, characters, sentences, paragraphs, reading time, speaking time, and repeated terms locally in your browser.

Contrast Checker

Check foreground and background hex colors against common WCAG contrast thresholds locally in your browser.

Cron Explainer

Explain five-field cron expressions locally in your browser with readable field meanings and schedule warnings.

CSS Units

Convert CSS px, rem, em, and percent values locally in your browser with adjustable root and parent font sizes.

CSV to JSON

Convert CSV or tabular spreadsheet exports into formatted JSON locally in your browser with header and delimiter controls.

Case Converter

Convert text into lowercase, uppercase, title case, sentence case, slug, snake_case, kebab-case, camelCase, and PascalCase locally in your browser.

HTTP Status Codes

Look up common HTTP status codes, meanings, categories, and troubleshooting notes locally in your browser.

Base64 Converter

Encode plain text to Base64 or decode Base64 back to UTF-8 text locally in your browser.

Hash Generator

Generate SHA-256, SHA-384, and SHA-512 hashes for text or local files without uploading them.

FAQ

No. It only parses text you paste into the browser and does not request your site or send rules to tempboxs.

Not reliably by itself. robots.txt guides crawling. To keep a page out of search results, use a noindex directive on the page or response where crawlers can see it.

When two matching rules have the same path length, many crawler implementations prefer Allow. Longer matching paths are usually more specific and take priority.

You can block crawl access, but private or temporary pages should also avoid public sitemap links and use noindex behavior where appropriate.