Free website tools

Check your website for SEO, security, data protection, accessibility and sustainability within seconds, and use our tools for colours, images, logos and copy. Every tool explains the result in plain language and shows what you can improve.

Quick start

Legally on the safe side?4 checks: Imprint Check (Austria), Cookie Check, Google Fonts Checker, Accessibility Check
Want to be found on Google?4 checks: SEO Check, Mobile-Friendly Test, Structured Data Checker, Local SEO & NAP Check
Fast and secure?4 checks: Speed & Hosting Check, Security Headers Check, Email Security Check, CMS Detector

SEO & visibility

Is your website found and correctly understood by Google and AI search?

SEO Check
Checks the most important on-page factors of a page, from title and description to headings and alt texts.
Mobile-Friendly Test
Shows your website at smartphone size and checks font size, tap targets, viewport, popups and horizontal scrolling.
Link Preview Checker
Shows how your link looks when shared on LinkedIn, Facebook, WhatsApp, X and Slack and checks title, text and preview image.
Structured Data Checker
Finds Schema.org markup on your page, checks it for errors and shows which Google rich results it makes possible.
Local SEO & NAP Check
Compares name, address and phone across your website and checks LocalBusiness data, opening hours and map links.
robots.txt Checker
Finds syntax errors, accidentally blocked pages and missing sitemaps in your robots.txt.
Redirect & Relaunch Check
Checks up to 50 old addresses: do visitors and Google end up on the right page after the move?
AI Visibility Check
Shows whether ChatGPT, Claude, Perplexity and Google AI Overviews may fetch and cite your website.

Performance & sustainability

How heavy is your website, and what does each page view cost in time and CO2?

Speed & Hosting Check
Measures load time with Google PageSpeed and shows where your website is hosted, when certificate and domain expire and who runs your e-mail.
Website Carbon Check
Calculates the CO2 emissions per page view, checks whether your hosting runs on green energy and shows where your website can slim down.
Third-Party Checker
Shows every external service your website loads on the first visit, with provider, headquarters and data volume.

Design & brand

How consistent and recognisable is your brand on the web?

Brand Check
Extracts colours, fonts, logo and favicon from your website and shows them as a compact style guide with hex codes.
Image Compressor
Makes photos for your website lighter and crops them precisely for Instagram, LinkedIn, Facebook and YouTube, right in your browser.
Runs only in your browser, nothing is uploaded
Image Metadata Editor
Shows and removes EXIF and GPS data without quality loss, adds creator, copyright and alt text and gives files SEO-friendly names.
Runs only in your browser, nothing is uploaded
Logo Tester
Shows your logo as favicon, app icon and profile picture in every size and creates the complete favicon package for download.
Runs only in your browser, nothing is uploaded
AI Image Checker
Reads whether an image is labelled as AI-generated or AI-edited and which tool was used to create it.
Runs only in your browser, nothing is uploaded

Marketing & copy

Compare yourself with competitors, track campaigns properly and write copy that people understand.

Competitor Comparison
Compares your website with a competitor’s in 11 areas and shows where you are ahead and where the other site does better.
Tracking & Conversion Checker
Checks Google Ads, Analytics, LinkedIn and Meta before and after consent, including Consent Mode v2 and click IDs.
UTM Builder
Creates clean campaign links with UTM parameters, with presets for newsletters, social media and print, including a QR code.
Runs only in your browser, nothing is uploaded
QR Code Generator
Creates static QR codes for links, Wi-Fi, contacts and more, with logo and colours, as SVG, PNG and PDF. No tracking and no expiry.
Runs only in your browser, nothing is uploaded
Readability Checker
Rates how easy your text is to read, highlights long sentences, passive voice and filler words, and gives concrete tips for tightening it.
Runs only in your browser, nothing is uploaded
AI Writing Pattern Checker
Highlights clichés, chat leftovers and formatting typical of AI-generated text and shows how to make your copy sound more natural.
Runs only in your browser, nothing is uploaded
Website Brief
Guides you through every question about your new website in twelve steps and turns the answers into a clear PDF for agencies.
Runs only in your browser, nothing is uploaded

Data protection & legal

Does your website comply with data protection and legal requirements, from the cookie banner to the imprint?

Cookie Check
Finds cookies and tracking services that your website loads before visitors have consented.
Google Fonts Checker
Shows whether your website loads fonts from Google servers and thereby transfers IP addresses without consent.
Imprint Check (Austria)
Finds your imprint and checks whether the mandatory information under Austrian law is complete.
PDF Metadata Editor
Shows what is inside your PDFs, removes author, internal file names and earlier versions and sets title and language for Google and accessibility.
Runs only in your browser, nothing is uploaded

Security

Which weaknesses of your website are visible from the outside?

Security Headers Check
Checks which protective headers your server sends: HTTPS, HSTS, CSP, framing protection, cookies. With a grade and a snippet.
Email Security Check
Checks SPF, DMARC, DKIM and MTA-STS of your domain: can someone forge e-mails in your name?
CMS Detector
Shows which system a website runs on, whether the version still receives security updates and, for WordPress, which plugins are outdated or vulnerable.
WordPress Security Check
Finds common weaknesses such as exposed usernames, outdated versions and public error logs.
PHP Version Check
Checks whether your server reveals its PHP version and whether it still receives security updates.

Accessibility

Can everyone use your website, including with a screen reader or keyboard?

Accessibility Check
Automatically tests your page against WCAG 2.2 AA for contrast, alt texts, forms and structure.
Colour Contrast Checker
Checks whether text and background colours are easy to read, suggests suitable shades and tests your entire brand palette at once.
Runs only in your browser, nothing is uploaded
Accessibility Statement Generator
Clarifies whether the WZG or the Austrian Accessibility Act applies to you and creates the matching statement for your website as a template.
Runs only in your browser, nothing is uploaded