Webvert

What Webvert does

Webvert SARL was a French software and services company, founded in 2021 and headquartered in Préaux near Rouen, Normandy, that specialized in website decarbonation. Its core product removed unnecessary bandwidth from client websites — re-minifying code, optimizing images and videos, configuring server cache, and enabling HTTP compression — while preserving identical visual rendering, using a proprietary Diagnostic de Performance Énergétique (DPE) A–G scoring system calibrated on a 449-site dataset and aligned to the Green Web Foundation's Sustainable Web Design v4 methodology. Webvert delivered decarbonation outcomes to clients across France, with named references including Harmonie Mutuelle, Octo Technology, Metropole Rouen Normandie, Linkt, Zeendoc, Ekwateur, Hipli, DuChesne and Prismian Club.

The company monetized through three products: a one-time "Décarbonation Ponctuelle" service (from €200 to €5,000 per engagement), a tiered monthly "Abonnement de Décarbonation" subscription (€39 to €499/month depending on page count), and a self-service "Outil d'Auto-Diagnostic" SaaS sold on per-credit pricing. Distribution was primarily direct via lewebvert.fr with a self-serve free diagnostic, supplemented by an OVHcloud marketplace listing and Gold/Silver channel and technology partnerships with Sopht, Webcom Normandie, bziiit, Wysistat and others. The company was co-founded by Youen Chéné (commercial development) and Jonathan Germond (technical lead) with a small, mission-driven team; registered as a French SARL with €4,001 of share capital and SIREN 899 725 147, it operated without external funding. In 2024, Webvert ceased operations, as stated on its own website.

Name

Webvert

Legal name

Webvert SARL

Website

https://lewebvert.fr

Company type

Private

Founded year

2021

Operating status

Closed

Headcount range

1–10 employees

Short description

Webvert SARL, a French software firm founded in 2021 and based near Rouen, provided website decarbonation services using a proprietary A–G energy-performance scoring system, serving SMBs, mid-market firms, and enterprises in France before ceasing operations in 2024.

Ownership category

akta.pro rank

Product category

Sustainable Web Services / Digital Eco-Design

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)

akta.pro primary industry

Web Performance & Acceleration (Caching, Compression, Image Optimization) (HDABAGAG)

Keywords

• Website decarbonization
• Eco-design services
• Web performance optimization
• Green IT consulting
• Sustainable web design

Headquarters

HQ city

Préaux

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Subscription Decarbonation: Monthly recurring decarbonation service with automatic monthly optimization of client website. Pricing tiers based on site page count (25 to 5,000+ pages). Includes free audit, monthly reporting, and access to portal. Two contract options: rolling 6-month initial with monthly billing (SEPA/card), or 12-month prepaid with 10% discount.
2. One-time (Ponctuelle) Decarbonation: One-off site optimization project for catching up on years of unoptimized content. Fixed-fee per service module (site size + individual optimizations: cache, CSS, JS, GZIP, images). Fees range from 200 EUR (10-page site) to 750 EUR setup + per-module fees. Paid by bank transfer or card, 30-day terms.
3. Auto-Diagnostic SaaS Credits: Per-credit purchase model for self-service diagnostic tool. Credits used for URL analysis without time limit. Additional charges for data restoration/recovery. Revenue stream complements the professional services.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels8 records

Core offering

Webvert provides website decarbonation services that reduce the digital carbon footprint of content websites by removing bandwidth waste while preserving identical visual rendering. The offering includes a one-time optimization service (Décarbonation Ponctuelle), a monthly subscription for continuous eco-performance (Abonnement de Décarbonation), and a self-service SaaS auto-diagnostic tool that scores websites on an A–G energy performance scale modeled after the French real estate DPE.

Product overview

Webvert is a website decarbonation service provider offering three distinct products: (1) Décarbonation Ponctuelle - a one-time optimization service for websites ranging from 200€ to 5,000€ based on page count, achieving 20-70% bandwidth reduction; (2) Abonnement de Décarbonation - a monthly subscription service (39€/month to 499€/month) providing ongoing optimization with monthly reporting; and (3) an Outil d'Auto-Diagnostic SaaS tool - a self-service diagnostic application that measures website energy performance and identifies decarbonation potential. The subscription service operates on a retainer model where Webvert accesses client sites via FTP/SFTP and admin panels to optimize images, videos, server configurations, and code.

Differentiator

Problem solved

Functional benefit

Brands

• Décarbonation Ponctuelle: One-time website decarbonation service for comprehensive site optimization
• Abonnement de décarbonation
• Outil d'auto-Diagnostic

Products and services

• Décarbonation Ponctuelle (One-Shot Website Decarbonation)
• Abonnement de Décarbonation (Decarbonation Subscription)
• Outil d'Auto-Diagnostic (Self-Diagnosis SaaS Tool)

Quantifiable outcome

• 20–70% bandwidth avoided after decarbonation intervention
• +4 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature3 records

Partnerships

13 partnerships are on record, tiered gold, silver, core, minor and bronze.

• SophtgoldTechnology or IntegrationGold partner providing comprehensive environmental impact assessment for IT systems (Devices, On-Premise and Cloud infrastructure). Enables GreenOps and FinOps approach. Webvert diagnostic data can be viewed directly within Sopht's customer account for unified sustainability reporting.
• Webcom NormandiegoldChannel Partner/ Reseller/ DistributorGold partner web agency creating low-impact WordPress sites hosted in France using renewable energy data centers. All sites receive a Webvert decarbonation pass. Near Rouen (same region as Webvert).
• OVHcloudsilverTechnology or IntegrationSilver partner and primary hosting provider. Sovereign and hyper-mutualized infrastructure. Listed on OVHcloud marketplace. Webvert uses OVHcloud as its primary hosting provider.
• bziiitsilverGTM or Marketing PartnerSilver partner providing responsible AI services to accelerate RSE (corporate social responsibility) initiatives: MEASURE, TRAIN, PILOT via Open Source models (RAG, GPT, fine-tuning) personalized to brand values and objectives.
• BoaviztacoreOthersActive participation in Boavizta, a non-profit that develops common-good tools to better assess digital environmental impact. Co-founder Youen Chené is a member.
• Codeurs en SeinecoreOthersActive participation in Codeurs en Seine, a gathering of developers in Rouen. Co-founder Youen Chené is involved.
• Designers EthiquesminorOthersSupport partner helping produce emancipatory, sustainable, and desirable digital technology. Listed on Webvert's partner page.
• Impact FranceminorOthersSupport partner and member of the Impact France movement of entrepreneurs focused on ecological and social impact. Listed on Webvert's partner page.
• WysistatbronzeTechnology or IntegrationBronze partner providing sovereign, GDPR-compliant, low-cookie analytics without requiring a cookie consent banner. Webvert uses Wysistat on its own site.
• Natural NetbronzeChannel Partner/ Reseller/ DistributorBronze partner web and SEO agency. Provides website creation and SEO expertise.
• Premiere PagebronzeChannel Partner/ Reseller/ DistributorBronze partner SEO agency offering natural referencing optimization services.
• HuplabronzeGTM or Marketing PartnerBronze partner providing RSE action cards to engage teams, including Webvert decarbonation actions.
• appYuserbronzeTechnology or IntegrationBronze partner eco-performance analysis tool serving end users.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Greenspector: Greenspector is a French vendor of digital eco-design measurement tooling — measuring the environmental footprint of websites, mobile apps, and connected devices. It is the most direct comparator to Webvert: same geographic market, same customer base (French digital/IT sustainability teams), and overlapping offering of energy-performance scoring and decarbonation recommendations.

Broad incumbents

• Cloudflare: Cloudflare operates a global CDN and edge-cloud platform that automates caching, image optimization, and HTTP compression at planetary scale — the same three optimization levers Webvert applies manually per website. Cloudflare increasingly offers sustainability dashboards reporting traffic-related emissions, making it the dominant incumbent adjacent to (and capable of absorbing) Webvert's web-performance niche.
• Greenly: Greenly is a French B2B SaaS that automates corporate carbon-footprint measurement across Scope 1, 2, and 3 emissions. It targets the same French enterprise sustainability buyer Webvert addresses with its Grand Comptes subscription, but at a much broader scope (operations-wide carbon) rather than website-specific decarbonation.
• Sopht: Sopht is a French startup that assesses the environmental impact of IT systems across Devices, On-Premise, and Cloud for GreenOps/FinOps programs. It addresses the same enterprise sustainability buyer as Webvert at a broader IT scope, and integrates Webvert's website-level data inside its dashboard — making it a broader incumbent in the adjacent, larger IT carbon-reporting category.
• Carbone 4: Carbone 4 is a leading French carbon consultancy and B-Corp with expertise across energy, transport, buildings, and digital footprints. It serves the same French enterprise sustainability buyer as Webvert but delivers through advisory projects and bespoke studies rather than standardized SaaS subscriptions.
• GTmetrix: GTmetrix is a widely-used web-performance measurement platform that scores site speed and identifies optimization opportunities. It overlaps with Webvert's Auto-Diagnostic SaaS on the measurement side but does not deliver the optimization service — comparable as a broader web-performance measurement incumbent.

Others

• Boavizta: Boavizta is the French non-profit that develops open-source environmental-impact assessment tools for digital services — co-founder Youen Chéné is an active contributor. Boavizta publishes measurement methodologies that compete at the standards layer with Webvert's proprietary DPE and define how French buyers interpret digital sustainability metrics.
• Website Carbon: Website Carbon is a free consumer-facing calculator that estimates per-page CO2 emissions using the Sustainable Web Design model. It serves a function directly analogous to Webvert's Auto-Diagnostic SaaS but targets general public awareness rather than enterprise procurement — an adjacent rather than competitive tool in the same measurement category.
• Designers Ethiques: Designers Ethiques is the French non-profit collective for emancipatory, sustainable digital design — listed as a support partner on Webvert's site. They are not a commercial competitor, but they shape the French digital eco-design talent pool and standards that influence Webvert's customer demand.
• Green Web Foundation: Green Web Foundation is the non-profit that maintains the Sustainable Web Design model and the Green Web Dataset — the open methodologies Webvert's DPE is built on. It is an enabling/standards body rather than a competitor, but it defines the underlying measurement science any web-decarbonation vendor is benchmarked against.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/lewebvert
• LinkedInlinkedin.com/company/lewebvert
• Instagraminstagram.com/lewebvert

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Webvert