Free Grammar &
Fact Checker

Grammar Errors on Live Webpages: How to Find and Fix Them

Most grammar checkers require you to paste text manually — which means copying content from your CMS, stripping formatting, then pasting it into a tool. Our URL-based grammar checker eliminates this entirely. Enter any public webpage URL, click Fetch, and the tool automatically extracts all readable content (stripping navigation, scripts, ads, and footers) and sends it directly for AI analysis. The results show the exact sentence containing each error so you can Ctrl+F it on your page immediately.

Why Context Matters in Grammar Checking

A word that is correctly spelled can still be used wrongly — "their/there/they're", "affect/effect", "complement/compliment". Traditional spell checkers miss these entirely because they only check whether a word exists in a dictionary. Mistral AI understands sentence context and correctly identifies these errors. It also understands that the same construction can be correct in academic writing and incorrect in business writing — which is why selecting the right document type before checking produces far more accurate results. Pair this with our free HTML Headings Checker to audit the full on-page structure.

AI Fact Checking: Detecting Misrepresented Data and Inaccurate Claims in Content

Factual errors in web content are more damaging than grammar errors. A misquoted statistic, a wrong date, a misattributed quote, or an exaggerated claim does not just undermine reader trust — it signals low E-E-A-T to Google's human quality raters and can trigger manual penalties for health, finance and other YMYL (Your Money or Your Life) topics. Our AI fact-checker analyses the text for statistics, scientific claims, historical facts, dates, and attribution, flagging anything that appears incorrect, misleading or unverifiable.

What the Fact Checker Detects

The AI flags: incorrect statistics (wrong percentages, outdated figures), misattributed quotes (words assigned to the wrong person), wrong dates (events placed in incorrect years), scientific misinformation (debunked claims presented as fact), false correlations (two events linked without causation), and exaggerated claims (superlatives that are not accurate). Each flagged claim includes an explanation of what is wrong and what the correct information is. Confidence level (high/medium/low) is shown so you know how certain the AI is before investigating further.

Fact Checking for SEO: The E-E-A-T Connection

Google's Search Quality Rater Guidelines — which inform how the algorithm is trained — specifically instruct raters to check whether a page's factual claims are accurate and well-supported. Pages that make false or misleading factual claims receive low Quality ratings. For competitive, high-authority topics, factual accuracy is a ranking differentiator. Run fact checking on your most important pages alongside our free Readability Score Checker to build a complete content quality audit.

Grammar Quality Scoring: Understanding Your Writing Score Out of 100

The overall writing quality score is a weighted composite of five sub-scores: Grammar (30%), Spelling (20%), Style (20%), Clarity (20%), and Tone (10%). A score of 90+ is Excellent, 80–89 is Very Good, 70–79 is Good, 55–69 is Average, 35–54 Needs Work, and below 35 is Poor. The weighting reflects the relative SEO and reader-trust impact of each dimension — grammar and spelling errors are most damaging to credibility, while tone mismatches are less critical but still matter for engagement.

How to Improve a Low Writing Score

Start with critical errors (grammar and spelling) — these have the highest weight and are the most visible to readers. Then address warnings (passive voice, wordiness, long sentences) which affect readability and featured snippet eligibility. Finally, review suggestions (style consistency, clichés, tone) to polish the writing further. Re-run the analysis after editing to verify your score improved. Track scores across your content library to identify writers or content types that consistently produce lower-quality copy.

Using Writing Score to Benchmark Content Quality

A writing quality score gives you an objective, AI-generated benchmark to compare content across your site — useful for content audits, writer performance reviews, and editorial guidelines. Combine it with a readability score from our free Readability Checker and keyword coverage from our free Keyword Density tool for a full content quality picture before publication.