Tools
Free SEO tools and calculators for businesses
Test your site, check your ads or work out a price. The result shows at once, without an e-mail address.
Each tool calculates or tests something you would otherwise do in a spreadsheet or hand to an agency: your Google Ads budget, your margin, what AI costs you, whether Google finds your site.
Enter your own numbers and see the result at once, with the explanation and the Belgian and EU rules below it. No email address, nothing stored.
Tools by goal
Pick what you want to achieve. Each tool shows what you enter and what you get back.
Get found in Google and AI
- AI crawler checkerTests your own siteYour robots.txt read the way eighteen crawlers read it, and whether ChatGPT, Claude and Perplexity can cite you.You enterA site that blocks GPTBotYou getCitations: yes, training: no
- Google review QR codeRuns in your browserYour direct review link, a QR code to print for the counter, the invoice or the van, a request for e-mail or WhatsApp, and a check of your own wording against Google's rules.You enterThe link from your Business ProfileYou getReview link plus QR code
- Hreflang tag generatorRuns in your browserEnter the language versions of a page and get the annotations in three formats, checked against the mistakes Google most often ignores.You enternl-BE, fr-BE, en and x-defaultYou get4 link tags, valid, the same set for every page
- SEO checkerTests your own siteYour page read the way Google reads it: fourteen parts, a score that says what comes first, and for each finding what to do next. Built for sites in more than one language.You enterA page with hreflang en-UKYou getScore 95, first the language codes
- SERP preview toolRuns in your browserSee where Google cuts your title and meta description, measured in pixels rather than characters, and whether your search term survives the cut.You enterA title of 70 charactersYou get662 pixels, cut after 600
- Website not showing on Google?Tests your own siteSeven causes checked on your page, with what to do next and how long Google takes.You enterA WordPress site that discourages search enginesYou getCause: noindex, the box under Settings, Reading
Your website and webshop
- DMARC checkerReads SPF, DKIM and DMARC from DNSType your domain. See who may send for it, whether your mail is signed, and what happens to forgeries.You enteryourcompany.comYou getSPF in order, DKIM found, DMARC at p=none
- SSL checkerReads your certificate and redirectType your address. See the expiry date, both host names, the https redirect and what the new limits ask of you.You entervbsmarketing.euYou getValid until 8 February 2027, 198-day lifetime
- Website speed testTests your own siteHow fast your server answers a visitor in Europe, how heavy your page is, and what to fix first.You enterA hero photo of 1.4 MBYou get7.3 seconds on slow 4G
- What CMS is this site using?Recognises the platform behind a siteYour own site or a competitor's: platform, version, theme and page builder, read from the page itself.You enterwordpress.org/newsYou getWordPress 7.2, certain
Advertising and marketing
- Engagement rate calculatorRuns in your browserEnter reactions, comments, shares and saves. You get three formulas next to the public benchmark.You enter225 interactions, 5,200 impressions on LinkedInYou get4.33 percent by impressions
- Google Ads budget calculatorRuns in your browserEnter the leads you want, or the budget you have. You get the clicks, the monthly and daily budget, the cost per lead and what a new customer costs you.You enter20 leads, EUR 2.50 a click, 5 percentYou getEUR 1,000 a month
- ROAS calculatorRuns in your browserYour ROAS, the break-even ROAS from your margin, your POAS and the target ROAS to set in Google Ads. For sales or for leads, with EU VAT and small business exemptions.You enterEUR 1,500 in ads, EUR 6,000 in revenue, 30% marginYou getROAS 4, break-even 3.33
AI in your business
Software and automation
- Software development cost calculatorRuns in your browserPick what your software should do and see hours, a price range and calendar time, without an email address.You enterSign-in, admin screens, reports, one integrationYou getEUR 16,000 to 35,700 at 85 euro an hour
- Time zone overlap calculatorRuns in your browserPick your city and your team's, set both working days, and see the hours you share on any date, daylight saving included.You enterNew York 9 to 5, Ghent 9 to 5You get2 hours shared, 3 in late March
Numbers for your business
- Belgian structured communicationRuns in your browserTurn an invoice number into the +++123/4567/89002+++ reference Belgian customers pay with, check one you received, or put it in a payment QR code.You enterInvoice INV2026-0042You get+++002/0260/04240+++
- Break even calculatorRuns in your browserEnter fixed costs, price and cost per unit. The chart shows where costs and revenue cross.You enterEUR 2,500 fixed costs, price 60, cost per unit 24You get70 units or EUR 4,167 of revenue a month
- EU VAT number checkLooks up VIES and PeppolPaste a VAT number with its country code. VIES answers, and for a Belgian company Peppol too.You enterBE 0403.170.701You getValid in VIES, receives Peppol e-invoices
- Freelance rate calculator BelgiumRuns in your browserEnter the net income you need. The calculator adds Belgian contributions, tax and costs, and counts your real billable hours.You enterEUR 3,000 net a month, EUR 9,000 costsYou getEUR 61.30 an hour, EUR 490 a day
- Late payment interest BelgiumRuns in your browserAmount, due date and payment date: interest per day and per half-year, plus the compensation you may claim.You enterEUR 2,420, due 31 May, paid 24 October 2026You getEUR 101.64 interest plus EUR 40
- Margin calculatorRuns in your browserYour margin and your markup side by side, the price for a target margin or the most you can pay, with EU VAT, the fees of Mollie, Stripe or Shopify and the cost of a discount.You enterCost EUR 60, price EUR 121 incl. 21% VATYou getMargin 40%, markup 66.7%
- Marketing budget calculatorRuns in your browserSet your budget as a share of revenue, or work it back from the growth you want. The calculator splits it over your channels, flags a channel that gets too little and exports a CSV.You enterEUR 500,000 revenue, B2B servicesYou getEUR 50,500 a year
- VAT calculator BelgiumRuns in your browserAdd or remove Belgian VAT, split an invoice by rate, and check whether you charge VAT at all.You enterEUR 1,250 excl. VAT at 21 percentYou getEUR 262.50 VAT, EUR 1,512.50 in total
Rules and obligations
- Cookie scannerReads what loads before consentType your address. See which cookies and trackers load before your banner, and whether your consent tool holds them back.You entervbsmarketing.euYou get0 trackers before consent
- EU AI Act compliance checkerRuns in your browserTen questions about the AI your company uses or sells, and the EU duties that come with it: your risk class, what applies today, what follows and the ceiling of a fine.You enterA chatbot for EU customersYou getTransparency
- Impressum generatorRuns in your browserFill in your details in English and get the German legal notice to paste on your site, with what each line is for.You enterA Belgian BV selling to GermanyYou getImpressum in German with register and VAT ID
- Peppol check BelgiumLooks up a company number in the Peppol registerLook up a Belgian enterprise number on the Peppol network and in the Peppol Directory, and see whether the company can receive e-invoices, under which Peppol ID.You enterEnterprise number 0403.170.701You getReceives e-invoices
- Website accessibility checkerMeasures WCAG on a page, plus contrastEnter a page. See what a machine can measure of WCAG, the heaviest errors first, and test your colours separately.You enteryourcompany.comYou get3 errors: alt text, labels, a button without a name
A calculator on your own site
We build the same kind of tool for your own site: a price calculator, a check or a simulator with your numbers and your rules. A good tool gets found in Google and ends in an enquiry.
- Rules taken from the official source, every exception included
- The result at once, and an enquiry that arrives with the numbers filled in
- Tracked without cookies: who calculates and who gets in touch after
Tell us where you stand.
A few sentences will do. We reply within 24 hours with a proposal for a first call.
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