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.

How does this SEO analyzer work without a paid API?

You paste your page's HTML source code. The analyzer runs entirely in your browser using JavaScript — parsing the HTML and checking 20+ SEO signals. No server call is made.

How do I get my page's HTML source?

In any browser: open your page, press Ctrl+U (Cmd+Option+U on Mac) to open source, then Ctrl+A to select all, Ctrl+C to copy. Then paste into the tool.

What does the SEO score mean?

The score (0–100) is calculated from passing checks vs total checks. 80+ is Good. 60–79 is OK. 40–59 Needs Work. Below 40 has significant issues.

What is a canonical tag?

The canonical tag ( ) tells Google which URL is the master version of a page, preventing duplicate content issues from multiple URL variants.

What are Open Graph tags?

Open Graph (og:) meta tags control how your page appears when shared on social media — the title, description, and image shown in Facebook, LinkedIn, Slack, and WhatsApp previews.

Should I check every page or just the homepage?

Every page you want to rank should be checked individually. Priority pages: homepage, main service/product pages, and top-traffic landing pages.

Back to SEO Content Tools

SEO Analyzer

Paste your page's HTML source for an instant audit of 20+ SEO signals — meta tags, headings, Open Graph, structured data, readability, images, and more. Free, no API, no signup.

20+ SEO ChecksMeta TagsHeadingsOpen GraphJSON-LDReadabilityImagesLinksSecurityNo API100% Free

SEO Analyzer

📋 How to use — paste your page's HTML source

1. Open the page you want to audit in your browser
2. Press Ctrl+U (or right-click → View Page Source)
3. Press Ctrl+A then Ctrl+C to copy all the HTML
4. Paste it below and click Analyse

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Free On-Page SEO Analyzer — 20+ Checks, No API

This tool audits any webpage's HTML source for over 20 on-page SEO signals — meta tags, headings, content quality, Open Graph, structured data, image alt text, links, security, and more. Everything runs in your browser. No paid API, no server, no rate limits, no account.

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20+ SEO Checks

From title length and meta description to JSON-LD schema, viewport, charset, canonical, mixed content, readability, and more.

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Instant — No API

Paste your HTML source and get results immediately. No API calls, no CORS issues, no rate limits, no paid plans.

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Prioritised Fixes

Each issue shows its exact value, a plain-English explanation, and a specific FIX you can implement immediately.

What This SEO Analyzer Checks

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Meta Tags

Title tag presence, length (50–60 chars), meta description presence and length (120–160 chars), canonical tag, charset declaration.

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Heading Structure

H1 presence and count (should be exactly 1), H2 subheadings (needs 2+), H3 usage, and heading hierarchy (no skipped levels).

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Content Quality

Word count (flagged if under 300 or 800), Flesch Reading Ease score, and recommendations to improve readability.

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Images

Alt text presence on all images, lazy loading implementation (loading="lazy"), image count totals.

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Links

Internal link count, external link count, nofollow vs dofollow breakdown, and linking recommendations.

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Mobile

Viewport meta tag presence and correct configuration (width=device-width, initial-scale=1).

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Security

Mixed content detection (HTTP assets on HTTPS pages), canonical HTTPS verification.

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Structured Data

JSON-LD block count and presence check. Missing schema makes pages ineligible for rich results.

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Social Media

Open Graph tags (og:title, og:description, og:image, og:url) and Twitter Card tags completeness.

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Indexability

Robots meta tag check for noindex/nofollow directives that would block Google from indexing the page.

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Performance

Inline script count analysis — large inline scripts can block rendering and should be deferred.

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Accessibility

HTML lang attribute check (required for screen readers and international SEO targeting).

Frequently Asked Questions

How does this SEO analyzer work without a paid API?: You paste your page's raw HTML source code into the tool. The analyzer runs entirely in your browser using JavaScript — it parses the HTML and checks over 20 SEO signals including meta tags, headings, Open Graph, structured data, readability, images, links, and more. No server call is made.
How do I get my page's HTML source?: In any browser: open your page, press Ctrl+U (Cmd+Option+U on Mac) to open the page source, then press Ctrl+A to select all, Ctrl+C to copy. Then paste into the tool. Alternatively, right-click the page and choose "View Page Source".
What does the SEO score mean?: The score (0–100) is calculated from the ratio of passing checks to total checks, with warnings counting as half a pass. A score of 80+ is Good. 60–79 is OK with minor issues. 40–59 Needs Work. Below 40 has significant issues requiring attention.
What is a canonical tag and why does it matter?: The canonical tag (<link rel="canonical">) tells Google which URL is the "master" version of a page. Without it, if the same content is accessible via multiple URLs (with/without www, with/without trailing slash, etc.), Google may index them as duplicate content and split ranking signals.
Why is the Flesch Reading Ease score important for SEO?: Google's ranking systems favour content that is clear and easy to read. A Flesch score of 60+ (Standard) is appropriate for most web content. Complex academic writing (below 30) tends to have higher bounce rates, which signals poor user experience to Google.
What are Open Graph tags?: Open Graph (og:) meta tags control how your page appears when shared on social media — the title, description, and image shown in the preview card on Facebook, LinkedIn, Slack, WhatsApp, and others. Missing og:image is the single most common reason share previews look broken.
What is JSON-LD structured data?: JSON-LD is Google's recommended format for structured data — code that tells Google exactly what your content is (FAQ, Article, Product, etc.) so it can display rich results like star ratings, FAQ dropdowns, and event dates directly in search results.
Should I check every page or just the homepage?: Every page that you want to rank should be checked individually, since meta tags, headings, and content are unique per page. Priority pages: homepage, main service/product pages, and top-traffic landing pages.

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