SEO agency specialized in Performance & ROI

SEO agency: Boost your visibility and your ROI with a tailor-made strategy

We transform your site into a machine for generating qualified traffic. Technical audit, content, netlinking: develop your Google visibility sustainably.
+150%
Average organic traffic
Top 10
Google positions
50+
Accompanied customers

They trust us

Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
Autonomy
Flucto
Telecoop
Innovorder
The nave for ethical banking
Forest
Lokki
The benefits of SEO

Why entrust your SEO strategy to an expert agency?

SEO is much more than a technique: it is a strategic lever for your growth. An expert agency maximizes your ROI and accelerates your results.
Maximum visibility

Maximize your visibility on search engines

Google processes over 8.5 billion searches per day. Being visible on the strategic queries of your market means capturing an intentional audience that is actively looking for your products or services. Our SEO expertise positions you where your customers are looking for you.
Perennial traffic

Generate qualified and sustainable traffic

Unlike SEA, which stops as soon as you cut the budget, SEO generates sustainable traffic. Well-positioned content continues to attract visitors for years. It's an investment, not an expense: every euro invested in SEO builds a sustainable asset.
Optimized conversion

Increase your conversion rate (SXO)

Search Experience Optimization (SXO) combines SEO and UX to maximize your conversions. Good SEO attracts traffic, a good user experience converts it. We optimize both to turn your visitors into customers.
Our pillars

The 4 pillars of our SEO expertise

A holistic approach to natural referencing, covering all the levers to maximize your visibility and your ROI.
de votre site internet et maximiser votre visibilité et votre ROI.

Technical Audit

A solid foundation for Google
We analyze in depth the technical health of your site: loading speed (Core Web Vitals), crawlability, indexing, architecture, structured data. A technically sound site is the basis for good SEO.
Core Web Vitals
Crawl & Indexing
SEO architecture

Content strategy

Semantics at the service of the user
We build an editorial strategy based on the research intention of your targets. Keyword research, semantic cocoons, internal networking: each content is optimized to rank and convert.
Search for keywords
Semantic cocoons
Content Gap

Netlinking and Authority

Boost your domain
We develop your domain authority through quality backlinks. Outreach strategy, digital PR, guest blogging: we obtain editorial links that sustainably boost your positioning.
Qualitative backlinks
Digital PR
Outreach

User Experience (SXO)

For an SEO that converts
SXO combines SEO and UX to maximize your conversions. We optimize user journeys, CTAs, readability and engagement to transform organic traffic into leads and sales.
UX Writing
CRO
Optimized routes
Discuss your SEO needs →
Specialized services

Our specialized SEO services

Tailor-made support to meet your specific challenges: local, international, redesign or e-commerce.

Local SEO

Dominate your catchment area
Optimize your local visibility on Google Maps and geolocated searches. Google Business Profile sheet, local quotes, customer reviews: we position you as the reference in your area.
Google Business Profile
Local quotes
Les Echos
Reviews & reputation

SEO International

Deploy your brand abroad
Expand your presence in international markets with a multilingual SEO strategy. Hreflang, content localization, adaptation to local engines (Yandex, Baidu...): we support you in exporting.
Hreflang
Location
Les Echos
Target markets

Redesign & Migration Support

Secure your traffic
A poorly managed migration can destroy your SEO. We secure your redesigns with an exhaustive redirection plan, monitoring indexing and maintaining your domain authority.
Redirections plan
Indexing monitoring
DA preservation

E-commerce & SEO

Optimize your product and category sheets
E-commerce SEO has its specificities: pagination management, faceted filters, duplicate content, structured product data. We optimize your catalog to maximize your visibility and sales.
Product sheets
Categories
Rich Snippets
Our process

Methodology: How our agency drives your growth

A structured and transparent approach, from initial audit to detailed reporting, to maximize your SEO ROI.
01

Initial Semantic Analysis and Audit

We analyze your current positioning, that of your competitors, and identify semantic opportunities with high potential. The technical audit reveals the obstacles that need to be addressed as a matter of priority.
Full technical audit (Core Web Vitals, crawl)
Analysis of current positions and traffic
SEO competitive benchmark
Keyword research and opportunities
02

Strategic roadmap and prioritization of actions

We build an SEO roadmap prioritized according to the impact and effort of each action. Quick wins, structural optimizations, long-term strategy: each recommendation is actionable and measurable.
Impact/effort prioritization
SEO editorial calendar
Technical optimization planning
SMART goals and KPIs
03

Operational deployment (On-site & Off-site)

We implement the defined actions: technical optimizations, production of SEO content, netlinking campaigns. Each deliverable is documented and validated with you.
On-page optimizations (tags, content)
Creation of optimized content
Targeted netlinking campaigns
Internal networking and architecture
04

Monitoring, Reporting and Data Analysis (Data & AI)

We track your positions, traffic, and conversions in real time. Our custom dashboards and AI tools identify opportunities and adjust the strategy continuously.
Position and traffic tracking
Custom dashboards (Looker Studio)
SEO conversion analysis
Data-driven recommendations

Une agence SEO à la performance avec mesure du ROI : Des KPIs clairs et actionnables

We measure the real impact of each action: evolution of positions, organic traffic, leads generated, turnover attributable to SEO. Each euro invested is traceable and optimizable.
Innovation & Tools

Innovation at the heart of our support: AI and Tools

We combine human expertise and cutting-edge tools to offer you SEO support that is both strategic and technologically advanced.agence de référencement web combine expertise humaine et outils de pointe pour vous offrir un accompagnement SEO à la fois stratégique et technologiquement avancé.

Generative AI & SGE

We anticipate the impact of Google's Search Generative Experience (SGE) on SEO. Our strategies incorporate optimization for AI responses and visibility in new search formats.

AI-enhanced writing

We use AI as an editorial assistant to accelerate content production, while ensuring human expertise for strategy, angles, and editorial validation.

Premium tools

Semrush, Ahrefs, Screaming Frog, Oncrawl, Search Console, Looker Studio... We use the best tools on the market for comprehensive analysis and accurate monitoring of your performance.

Proprietary tools

We've developed our own analytics and automation tools to identify opportunities that standard tools don't detect, and speed up the deployment of optimizations.
Our partner tools
Semrush
Ahrefs
Screaming Frog
Oncrawl
Google Search Console
Looker Studio
Proven results

They trust us: case studies and customer reviews

Concrete, measurable results, and satisfied customers. Learn how we accelerated their SEO growth.
X
425 PPM
+900%
d’utilisateurs en 2 mois
+30
articles dans des médias majeurs, (France Inter, TF1, 20 Minutes…)
“Les Relations Presse ont clairement été un accélérateur. En quelques semaines, on est passé de 500 à plus de 5 000 utilisateurs. La stratégie média de 425PPM nous a permis d’être visibles au bon moment, dans les bons médias et de crédibiliser notre positionnement sur l’effacement électrique.“
Guillaume Faure
CEO et fondateur de LibertéWatts
X
425 PPM
+970%
de traffic site en 6 mois
+30
retombées dont Les Échos, France Bleu, LCI, Europe 1, France Inter, RMC…
“En quelques mois, on a changé d’échelle. Grâce aux relations presse, on a été visibles dans les bons médias. Grâce au SEO, notre trafic a littéralement explosé. Et surtout, on dit enfin clairement qui on est, à qui on s’adresse, et pourquoi on le fait. 425PPM a su aligner visibilité, positionnement et acquisition. C’est rare.”
Nicolas Ziegler
CEO et fondateur de Merci Paulo
X
425 PPM
+1
Déjeuner presse, media training, positionnement France
+20
Retombées médias qualifiées
“425PPM nous a énormément aidés à structurer notre présence médiatique en France. Grâce à eux, nos dirigeants ont été formés, rencontrés par les bons journalistes et visibles dans les bons médias. On a noué des relations solides et stratégiques avec la presse française.”
Alex Berwin
Head of Communications chez Forest
See our complete success stories
Frequently asked questions

FAQ: Everything you need to know about natural referencing

Answers to the most frequently asked questions about SEO, pricing and how to choose the right agency.

What is the price of a service in an SEO agency?

A press relations agency (or PR agency) is a service provider specialized in managing your relationships with the media. She develops your external communication strategy, writes your press content (press releases, press kits), identifies and contacts relevant journalists, organizes interviews and measures the impact obtained. Unlike an advertising agency, the objective is to obtain editorial coverage (not paid), perceived as more credible by the public.

How long does it take to get results?

An effective PR strategy is based on three fundamental pillars: 1) A clear positioning with differentiating messages that meet the expectations of journalists (the angle of contact). 2) Precise targeting of media and journalists relevant to your sector, with personalized contacts. 3) A regular approach to actions with an editorial calendar aligned with news and media channels. To these three pillars, a fourth is now added: SEO integration to capitalize on the backlinks generated.

Why combine SEO and SEA for your acquisition?

To choose your PR agency, evaluate several criteria:

How do you choose the best SEO agency?

Competent press officers work in PR agencies or as freelancers. In Paris, the market is dense with agencies specialized by sector (tech, fashion, food, corporate...). In the regions (Lyon, Bordeaux, Nantes, Lille...), choose an agency that masters both national and regional media. At 425PPM, we operate throughout the country with a network of PQR (Regional Daily Press) contacts and local media in addition to the national media.

What is SXO and why is it important?

The budget of a PR campaign varies according to several factors: the duration (one-time or long-term support), the extent of the objectives (product launch vs continuous visibility), and the services included (writing, media training, events...). On average, monthly support starts at around €3,000 excluding tax for a startup and can reach 5,000 to €10,000 excluding tax for a large-scale campaign. AVE (return in advertising equivalent) makes it possible to measure the ROI of this investment.

How does SEO adapt to AI and SGE?

The fundamental difference is the control of the message. In advertising, you pay for a space (print, TV, digital) and control 100% of the content. In PR, you don't pay for media space: it's the journalist who decides whether to talk about you (or not) and who writes the article from his angle. This editorial character gives PR greater credibility: an article in Le Monde or a passage on BFM Business is perceived as a third-party validation, more reliable than an advertisement. On the other hand, the results are less predictable.

What is the difference between on-site and off-site SEO?

The first results can appear as early as the first month for strong news (fundraising, major launch). However, a sustainable PR strategy generally requires 3 to 6 months to build solid relationships with journalists and get regular coverage. The SEO benefits (improvement of SEO thanks to mentions of your company) are visible after 3 to 6 additional months. We recommend a minimum commitment of 6 months for significant results.

How to measure the ROI of your SEO investment?

The first results can appear as early as the first month for strong news (fundraising, major launch). However, a sustainable PR strategy generally requires 3 to 6 months to build solid relationships with journalists and get regular coverage. The SEO benefits (improvement of SEO thanks to mentions of your company) are visible after 3 to 6 additional months. We recommend a minimum commitment of 6 months for significant results.
Another question? Contact us directly
Let's take action

Book your strategic call

30 minutes to discuss your visibility goals, assess the media potential of your news, and define together a PR strategy adapted to your challenges.
What we will discuss:
1
Your communication objectives and your news to promote
2
Media relevant to your sector and your targets
3
The first recommendations for your PR strategy
Other means of contact
contact@425ppm.com
+33 7 57 59 00 95