Rueil-Malmaison · Paris · Paris region
Search engine optimisation is the work that makes your site appear when your customers type your trade into Google, without paying for every click. Technical work, content, internal linking, inbound links, Google profile and visibility inside AI answers: it is all included in a retainer from €500 a month.
Would you rather start with a snapshot? Check your website's SEO in 60 seconds, free of charge.
Rankings and visits over six months
ExampleFree audit
Enter your website address: the tool reads your pages the way Google does and returns a score per family (technical, tags, content, mobile, structured data, AI visibility), with the list of blocking points. The full report is sent to you as a PDF.
Enter your website address to get a full SEO audit, free of charge.
The problem
Three situations we find in almost every audit. Each one has a precise cause, and a fix inside our method.
Your enquiries come from advertising or from word of mouth. The moment the budget stops, so does the phone. Google itself sends you nobody.
Articles written at random, service pages that all read the same, no precise search term targeted: Google has no idea what to rank you for.
Thirty-page spreadsheets, rankings on words nobody types, and still not a single enquiry.
What we do
Five levers that reinforce one another, carried out in this order: the technical work first, because without it the best content stays invisible.
A site Google can read, index and load quickly. This is the foundation: without it, the best content in the world stays invisible.
Service pages and articles that answer the questions your customers actually type, read and approved by you before they go live.
The links between your own pages pass authority from your strong pages to your weak ones and help Google make sense of your site.
Sites connected to your trade or your town talking about you: useful directories, partners, the local press, guest articles.
Your Google profile, your customer reviews and content that ChatGPT, Perplexity and Google AI Overviews can quote, at no extra cost.
Local SEO and visibility inside AI answers each have their own page: Google Business Profile and customer reviews on one side, being quoted by ChatGPT, Perplexity and Google AI Overviews on the other. For a full picture of your site before you start, see our full SEO audit.
Our method
Five milestones, always in the same order, each with a result you can check in your Search Console.
Day 1
Your business, your area, your customers, your current site. Within 24 hours, a written quote with the actions set out in detail and the monthly price. If SEO is not the right lever for you, we say so.
Weeks 1 and 2
Technical, content, current rankings, competitors, Google profile, access for AI crawlers. Then the list of the search terms your customers type and the page on your site that must answer each one, agreed with you.
Month 1
Tags, speed, mobile, internal linking, structured data, indexing. The foundation is laid before a single piece of content is written.
Ongoing
Service pages and articles written, reviewed with you and published. Inbound links earned properly. Google profile completed, reviews collected. Content structured for Google and for AI.
Every month
Rankings, impressions, clicks and enquiries, taken from your Search Console, with the list of what was done. Whatever is not moving gets fixed, not hidden.
What you get
What belongs to you and what you can see, month after month.
What is holding you back, what pays off, and in which order. The document is yours, even if you carry on alone.
What your customers search for, the page that answers each one, and how they move month after month.
Pages and articles written, reviewed with you and put online, tags and structured data included.
Every link gained, with its source and its date, in the report. Nothing bought in bulk.
Categories, photos, posts, replies to reviews, collection with MerciAvis: local SEO included.
Rankings, impressions, clicks and enquiries, taken from your Search Console. One page, not thirty.
If your current site cannot carry this work, we tell you during the audit. You can then ask for a free mock-up of a new site or a website redesign built for search.
What you can check
No invented curves and no testimonials written for the occasion. On several competitive searches in Paris, our own site appears on page 1 or page 2 of Google: these are the methods described on this page, applied to ourselves.
We do not publish client figures: a ranking depends on the trade, the town, the competition and the age of the site. On the call, we show you our Search Console, with nothing made up.
Average positions recorded in our Search Console over 90 days (September 2026). They change constantly and say nothing about what your own site will do.
Three things to check
Our own pages on Google
Type these French searches into Google and look for convertilab.com in the results.
The free tool on this site
It analyses any page in 60 seconds and returns a score with a PDF report.
This page itself
One H1, questions as H2s, a marked-up FAQ, a breadcrumb trail: view the source code.
Brochure site, quote funnel and local SEO
“Since I launched my site with ConvertiLab, I have taken on more staff just to keep up with the demand.”
Describe your goal in two clicks: you get a first read of your site and a written quote within 24 hours, with no commitment.
Typical agency or ConvertiLab
This table describes practices we often come across when taking over a site, not one agency in particular.
Our commitments
They do not promise a ranking, but a way of working.
The actions in detail, the monthly price and the length, in black and white, before we start.
We commit to the work and to the fixes, never to a ranking that Google alone decides.
Access, audit, content, links, Google profile: in your name, with your logins, even if you stop.
If SEO is unlikely to pay off for you, we tell you on the first call.
Price and commitment
Prices stated before the first meeting, and a commitment limited to what it takes to judge the work.
VAT not applicable, article 293 B of the French General Tax Code. The quote is written and approved before anything is done to your site.
Your questions
Our retainer starts at €500 a month, six months minimum. The exact figure depends on how competitive your search terms are, how many pages need work and how much content has to be written each month. You receive a written quote, with the actions set out in detail, before you commit to anything. The full SEO audit can also be ordered on its own, on request.
Technical fixes show up in your Search Console within a few weeks. Rankings usually start to move between the second and the third month. Allow three to six months for results you can measure: pages climbing, impressions rising, then visits and enquiries. Google takes time to reassess a site, and each action builds on the ones before it.
Because SEO stopped after two months produces almost nothing: the fixes, the content and the links add up, and Google needs several passes to take them into account. Six months is the shortest period over which the work can be judged honestly. After that you decide month by month, with no awkward notice period.
No, and nobody can: Google ranks the pages, and it changes its rules several times a year. An agency that guarantees you a position is selling you a promise it does not control. We commit to what we do control: the work carried out each month, honest reporting, and fixes when an action leads nowhere.
We look for links from sites connected to your trade or your town: useful trade directories, partners, suppliers, the local press, guest articles. We do not buy links in bulk from link networks: Google spots them and penalises them. Every link gained is listed in your monthly report.
We write the pages and the articles from a conversation with you about your trade, your customers and your prices. You read and approve each piece before it goes live: that is the only time we ask of you, roughly one read-through a month. Your photos, your figures and your real examples make the content more credible, for Google and for AI alike.
Every site we deliver comes with the SEO basics: title and description tags, heading structure, structured data, sitemap, robots.txt, speed and mobile display. Ongoing SEO, content and links every month, is this separate monthly retainer, because it calls for steady work over time.
The free tool analyses one page in 60 seconds (tags, speed, structured data, mobile, AI crawlers) and returns a score with a PDF report. The full audit, which we carry out ourselves, covers the whole site, your current rankings, your competitors and your Google profile, with a prioritised action plan. It is included when the retainer starts.
We are based in Rueil-Malmaison (92) and we work in Paris, in La Défense and across the Paris region. Search engine optimisation is done remotely: we also support shops, tradespeople and practices anywhere in France, with the same reports and the same single point of contact.
The SEO pillar
Content, Google profile, reviews, AI visibility: the pages of the pillar reinforce one another.
We are a web agency in Rueil-Malmaison and we work as a web agency in Paris and in La Défense and Puteaux. Any questions? Write to the agency.
The other levers
SEO sends visitors your way. The other three pillars turn them into customers.
Website creation
Brochure site, e-commerce, landing page, redesign or web app, delivered in two weeks.
Landing page €490, brochure site €890
Website creation in Rueil-Malmaison and ParisOnline advertising
Google Ads, Meta Ads (Facebook, Instagram), TikTok, Pinterest and LinkedIn Ads.
On request
Google Ads, Meta Ads and social ads agency in ParisCRM and automatic follow-ups
We set up your CRM, whichever one it is (HubSpot, Salesforce, Pipedrive, Zoho, Brevo, Sellsy, Axonaut, monday CRM or the one you already have), with your website forms and your campaigns connected to it, and automatic follow-ups by email.
On request
CRM and automatic follow-ups for small and medium businesses: HubSpot, Salesforce, Pipedrive
46% of Google searches have local intent. Google Business Profile, customer reviews, local pages, citations: the complete guide to appearing in the Local Pack in 2026.
Read the article
76% of people who run a local search visit a business within 24 hours. A free Google Business Profile, 8 optimisations and customer reviews: the complete guide to appearing in the top 3 local results.
Read the article
The 6 methods that really work for a tradesperson in 2026: an SEO website, Google Maps, digital word of mouth, social media. With real figures.
Read the articleWritten SEO quote
One question first, your details after. A written answer, with no commitment.
Your goal
No contact details asked for at this step.
Book 30 minutes, free of charge, and talk to the founder. You leave with an honest opinion on what SEO can bring you, and what it cannot.