Tools for SEO, AI and everyday tasks
These tools came out of our own work, and each one does a specific job. Try them out, and if you have feedback, get in touch.
Tag:
26 tools
SEO and website
Domain age checker
Works out the age of a domain from its registration date (via RDAP, where the registry provides one; .de does not) and its first Wayback Machine snapshot.
SEO and website
Google review link with QR code
Creates a direct link for customers to review your business on Google, and a QR code to print.
AI
AI Bot Checker
Shows which AI crawlers such as GPTBot or ClaudeBot may read your site under robots.txt and meta robots.
AI
llms.txt tester and validator
Checks an llms.txt file for structure and reachability, fetched by domain, uploaded or pasted.
SEO and website
Bulk URL opener
Opens up to 30 URLs at once from a list or a .txt file, and opens duplicates only once.
AI
Prompt injection scanner
Finds hidden instructions aimed at AI systems in a web page, such as HTML comments, hidden text or invisible characters.
SEO and website
Cloaking detector
Compares what a URL serves to a browser and to a request with the Googlebot user agent: title, description, canonical, headings and word count.
AI
AI labelling check
Checks under Article 50 of the EU AI Act whether an AI text, image or chatbot needs a label, and gives you the notice wording.
AI
AI transcription notice
Five questions, then the notice to read out before an AI tool records a meeting or call.
SEO and website
Readability checker
Scores how readable a text is with several readability formulas and marks overlong sentences.
AI
AI bot log parser
Reads your server logs: which AI crawlers actually visit, how often and which content they fetch.
SEO and website
Sitemap and robots.txt cross-check
Finds URLs that are listed in the XML sitemap and blocked by robots.txt at the same time.
SEO and website
robots.txt validator
Checks a robots.txt file for syntax errors and tests whether a URL is allowed for a given crawler.
SEO and website
HTTP header checker
Checks the HTTP headers of many URLs at once and scores security headers such as CSP and HSTS.
SEO and website
hreflang tester
Finds errors in hreflang tags: missing return links, invalid language codes, incomplete clusters.
Calculators and everyday tools
3D printing cost calculator
Calculates what a 3D print costs: filament, machine time, electricity and margin.
SEO and website
Disavow file generator
Creates a disavow file that asks Google not to count certain links to your site.
SEO and website
RSS feed parser
Reads RSS and Atom feeds and finds errors that can keep posts out of directories.
Calculators and everyday tools
me2sea
Shows the nearest coastal towns, with the sea and the distance, from your location or any place you enter.
Calculators and everyday tools
BMI calculator
Calculates your body mass index and shows how many kilograms separate you from the normal range (page in German).
SEO and website
Google SERP preview
Shows your title and meta description as a Google snippet and where Google is likely to cut the text.
SEO and website
Local rankings checker
Creates a Google search link with a location setting that shows the results for your keywords in any location, without you having to be there.
SEO and website
Schema markup generator
Generates structured data as JSON-LD without you writing code.
SEO and website
Social preview
Shows how your page looks when shared on Facebook, X, LinkedIn, WhatsApp, Slack and Discord.
Calculators and everyday tools
Time calculator
Five date and time calculators: days between two dates, calendar week, countdown, deadlines and day of the week.
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