What SEO tools does Texterfly offer?

Texterfly offers 11 free SEO and content tools: Robots.txt Generator, XML Sitemap Generator, Schema Markup Generator, Meta Tag Generator, Content Optimizer, Advanced Readability & Content Grader, Keyword Research Tool, Keyword Density Checker, SEO Analyzer, Alt Text Generator, and Privacy Policy Generator. All are free, browser-based, and require no signup.

What is the ideal meta title length for SEO?

Google displays meta titles up to approximately 600px wide, which corresponds to roughly 50–60 characters. Titles shorter than 50 characters may miss keyword opportunities; titles longer than 60 characters are truncated in search results with an ellipsis. The Meta Tag Generator includes a live character counter and pixel-width preview.

What is the ideal meta description length?

Google typically shows meta descriptions of 150–160 characters in search results (up to about 920px). Longer descriptions are truncated. Meta descriptions do not directly affect rankings, but they influence click-through rate (CTR). Write descriptions that include the primary keyword and a clear call to action.

What should a robots.txt file contain?

A valid robots.txt file uses User-agent directives to specify which crawlers the rules apply to, Disallow directives to block specific paths, Allow directives to override Disallow rules for subpaths, a Sitemap directive pointing to your sitemap.xml URL, and optionally a Crawl-delay to throttle bot crawl frequency. Example: "User-agent: * / Disallow: /admin/ / Sitemap: https://example.com/sitemap.xml".

What is schema markup and why does it matter for SEO?

Schema markup (structured data) is JSON-LD or Microdata code added to your HTML that helps search engines understand your content. It can unlock rich results in Google Search — such as star ratings, FAQ dropdowns, breadcrumbs, event dates, and How-To steps — which increase visibility and CTR without directly affecting rankings. The Schema Markup Generator produces ready-to-paste JSON-LD for 15+ schema types.

What is keyword density and what is the ideal percentage?

Keyword density is the percentage of times a keyword appears relative to the total word count. The formula is: (keyword occurrences ÷ total words) × 100. A density of 1–3% is generally considered optimal. Below 1% may signal that the topic is not well covered; above 3% risks keyword stuffing, which can trigger Google penalties. The Keyword Density Checker calculates this instantly.

Why is alt text important for SEO?

Alt text (alternative text) serves two SEO purposes: it describes images to search engine crawlers, helping images rank in Google Images; and it makes content accessible to screen readers used by visually impaired users. Good alt text is descriptive, includes the primary keyword naturally where relevant, and is typically 8–15 words. The Alt Text Generator analyses image content and suggests optimised alt text.

What is an XML sitemap and how does it help SEO?

An XML sitemap is a file (sitemap.xml) that lists all important URLs on your website with optional metadata (lastmod, changefreq, priority). It helps search engines discover pages they might miss through crawling — especially new pages, orphaned pages, and pages with few internal links. Submitting it to Google Search Console can significantly speed up indexing.

What is the Flesch-Kincaid readability score?

The Flesch-Kincaid Reading Ease score rates text on a 0–100 scale. Higher scores mean easier reading: 90–100 is very easy (5th grade); 60–70 is standard (8th–9th grade); 30–50 is difficult (college level); 0–30 is very difficult (professional). Most general web content should aim for 60–70. The Readability Grader calculates Flesch-Kincaid and four other readability formulas.

What schema markup types does the generator support?

The Schema Markup Generator supports: Article, BlogPosting, Product, Review, FAQPage, HowTo, Recipe, Event, LocalBusiness, Organization, Person, BreadcrumbList, WebSite (with SearchAction), VideoObject, and WebApplication. Each generates valid JSON-LD that can be tested in Google's Rich Results Test.

Are these SEO tools free?

Yes. All 11 SEO and content tools on Texterfly are 100% free with no registration, subscription, or payment required.

Is my content private when using these tools?

Yes. All processing runs entirely in your browser using JavaScript. Your content, URLs, and data are never sent to any server or stored anywhere.

What is a robots.txt file?

A robots.txt file is a plain text file placed at the root of a website (e.g. https://example.com/robots.txt) that instructs web crawlers which pages or sections they are allowed or not allowed to access. It follows the Robots Exclusion Protocol and is respected by all major search engine crawlers including Googlebot, Bingbot, and others.

How do I test my robots.txt with Googlebot?

Enter your domain URL in the Fetch field and click Fetch, or paste your robots.txt content directly. Select "Googlebot" from the user-agent presets. Enter the path you want to test (e.g. /products/) in the URL paths field and click Test. The tool shows whether Googlebot is allowed or blocked, and exactly which rule caused the result.

What does "Allow" vs "Disallow" mean in robots.txt?

Disallow: /path tells a crawler not to access URLs starting with /path. Allow: /path explicitly permits access, and takes precedence over a matching Disallow when both apply. When Allow and Disallow rules both match a URL, the longest (most specific) match wins. If both are the same length, Allow wins.

Can robots.txt block Googlebot from indexing a page?

Robots.txt can prevent Googlebot from crawling a URL, but not from indexing it. If other sites link to a disallowed URL, Google may still index it (without content). To prevent indexing, use a noindex meta tag or X-Robots-Tag HTTP header instead.

What are wildcards (* and $) in robots.txt?

* matches any sequence of characters. For example, Disallow: /*.pdf blocks all URLs containing .pdf anywhere. $ matches the end of a URL. Disallow: /*.pdf$ blocks URLs ending in .pdf but allows /pdf/guide (which has more characters after .pdf). Both are Google extensions to the original robots.txt spec.

Should I block GPTBot in my robots.txt?

GPTBot is OpenAI's web crawler used to train AI models. Many site owners add Disallow: / for User-agent: GPTBot to prevent their content from being used for AI training. Use this tester to verify your GPTBot rules are working correctly before deploying.

What is Crawl-delay in robots.txt?

Crawl-delay: N asks the crawler to wait N seconds between requests. This reduces server load from aggressive crawling. Note: Google does not support Crawl-delay in robots.txt — use Google Search Console's crawl rate settings instead. Bing and other crawlers do respect it.

Is this robots.txt tester the same as Google Search Console's?

This tool uses the same Robots Exclusion Protocol spec as Googlebot, including Allow/Disallow priority, longest-match rule, wildcard support, and end-anchor ($). It is not affiliated with Google but applies the same parsing rules. For the official Google tool, use the robots.txt tester in Google Search Console.

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Robots.txt Validator & Tester

Paste or fetch your robots.txt, test any URL path against any crawler, and see exactly which rule applies — free, instant, no sign-up.

Need to create a robots.txt first?

Use our free Robots.txt Generator to build one, then come back here to test it.

Robots.txt Generator

Fetch Live robots.txt

robots.txt Content

User-Agent to Test

Custom User-Agent

URL Path to Test

Paste or fetch a robots.txt first.

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Free Robots.txt Validator & Tester — Test Any URL Against Any Crawler

Texterfly's Robots.txt Validator & Tester parses your robots.txt file using the same rules as Googlebot — Allow/Disallow priority, longest-match wins, wildcard *, and end-anchor $ support — and shows you exactly which rule applies to any URL path for any crawler.

Paste your robots.txt or fetch it live from your domain. Select Googlebot, Bingbot, GPTBot, or any custom user-agent. Test a single path or batch-test dozens at once. Conflict detection highlights cases where both Allow and Disallow match the same URL and explains which one wins. Sitemaps and Crawl-delay directives are extracted and displayed separately.

Don't have a robots.txt yet? Use our free Robots.txt Generator to create one, then come back here to test it before deploying.

How Robots.txt Parsing Works

User-agent matching

The parser finds the most specific group for the crawling bot. An exact match (e.g. User-agent: Googlebot) takes priority over the wildcard group (User-agent: *). If no explicit group exists, the wildcard group applies. If no wildcard exists, all paths are allowed.

Allow vs. Disallow priority (longest match)

When multiple rules match a URL path, the most specific (longest) pattern wins. If an Allow: /admin/public/ and Disallow: /admin/ both match /admin/public/index.html, the Allow: rule wins because it's longer. If two rules are the same length, Allow always beats Disallow.

Wildcard * in paths

The asterisk (*) matches any sequence of characters. Disallow: /search?* blocks all URLs containing /search? anywhere. Disallow: /*.pdf blocks any URL with .pdf in it. Wildcards are a Google extension to the original spec and are supported by most major crawlers.

End-of-string anchor $

A $ at the end of a pattern anchors the match to the end of the URL. Disallow: /*.pdf$ blocks /file.pdf but not /pdf/download (which has characters after .pdf). Without $, the pattern is a prefix/substring match.

Empty Disallow means "allow all"

Disallow: (with no value) is valid and means the crawler may access all pages. It is equivalent to not having any Disallow rule. This is commonly used as a placeholder.

robots.txt does NOT prevent indexing

A Disallow: rule prevents crawling, not indexing. If another site links to a blocked URL, Google may still index it (showing just the URL, without content). To prevent indexing, use a noindex meta tag or X-Robots-Tag HTTP response header.

Common Crawler User-Agents Reference

User-agent	Owned by	Purpose	Block to…
Googlebot	Google	Web search indexing	Remove from Google Search
Google-Extended	Google	Gemini AI training data	Opt out of Google AI training
Bingbot	Microsoft	Bing search indexing	Remove from Bing
GPTBot	OpenAI	ChatGPT / GPT model training	Opt out of OpenAI training
CCBot	Common Crawl	Open research dataset	Opt out of Common Crawl
Bytespider	ByteDance	TikTok / Douyin AI training	Opt out of ByteDance AI
FacebookExternalHit	Meta	Link preview fetching	Stop Facebook link previews
Applebot	Apple	Siri, Spotlight, Apple Search	Remove from Apple Search
DuckDuckBot	DuckDuckGo	DuckDuckGo search indexing	Remove from DuckDuckGo
AhrefsBot	Ahrefs	SEO backlink database	Block Ahrefs crawling
SemrushBot	Semrush	SEO competitive analysis	Block Semrush crawling

Need to Build a robots.txt from Scratch?

Our Robots.txt Generator lets you select user-agents, add Allow/Disallow rules visually, set Crawl-delay, and add sitemap URLs — then generates a ready-to-deploy file. Use it to create your robots.txt, then test it right here.

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Frequently Asked Questions

Does this tester use the same rules as Googlebot?

Yes. The parser implements the Robots Exclusion Protocol as documented by Google: Allow/Disallow priority, longest-match wins when multiple rules match a URL, wildcard (*) support, end-anchor ($) support, and case-insensitive user-agent matching. It is not affiliated with Google, but applies the same parsing logic.

Why does my URL show as blocked even though I have an Allow: rule?

The Allow: rule may be shorter than the Disallow: rule that also matches. The longest (most specific) matching rule wins. Check the "Matched rule" shown in the result — if a Disallow: rule is longer than your Allow: rule, add a more specific Allow: that is at least as long as the Disallow:.

Can I test AI bot blocking (GPTBot, CCBot)?

Yes. Select GPTBot or CCBot from the user-agent presets and test your paths. If your robots.txt has User-agent: GPTBot / Disallow: / this tool will confirm the block is working correctly.

Google isn't crawling my page even though robots.txt allows it — why?

robots.txt controls crawling permission, not crawl priority. Other factors affect how often Google crawls a page: internal link depth, PageRank, crawl budget, server response time, and frequency of content changes. Google Search Console's Coverage report and URL Inspection tool give more specific crawl data.

What is the difference between this tool and Google Search Console's robots.txt tester?

Google Search Console's tester requires a verified site property and tests only Googlebot against your live robots.txt. This tool works without any account, lets you test any user-agent (including AI bots), works on any robots.txt content — live or pasted — and adds features like batch testing, conflict detection, and parsed rule tables.

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