🚀 TG4G
DirectoryMarketing & SEOagence404.com
📈 Marketing & SEO 📍 HQ: France
A

agence404.com

Overall Rating
★★★☆☆ 6.0/10
China Access
★☆☆ Limited (proxy recommended)
Quick Check
Data source
ai_refine · Last updated 2026-06-12

⚡ Score breakdown

5-dim weighted · /10
Performance25% 6.0
Value20% 6.0
China access20% 6.0
Reputation20% 5.6
Support15% 5.5

Dimension scores are derived from public data and fields; weighted into the composite. Reference only.

Editorial Highlights

Editorial notes are currently written in Chinese - English translation is in progress. View Chinese version →
2007年起做SEO,适合法语市场调研。

In-Depth Review TG4G Review ·2026-06-10 · For reference only

What It Is

Agence404 is a French SEO and digital marketing agency. According to its website, it has been operating since 2007 and uses a 100% remote model to provide businesses with organic Google search growth services. It is not a self-service SEO software tool, but a consulting-based service provider whose core goal is to turn organic rankings, traffic, and leads into business revenue.

Core Capabilities

Its service coverage is fairly comprehensive: SEO audits, technical SEO, keyword strategy, semantic content clusters, content marketing, E-E-A-T optimization, link building, local SEO/Google Maps, website migrations, and SEO training. On the technical side, it emphasizes Core Web Vitals, crawling, indexing, structured data, site architecture, and internal linking. On the content side, it highlights cocons sémantiques (semantic topic clusters) and expert-led content. For authority building, it includes premium backlinks, digital PR, and toxic link disavowal. The website also mentions support for WordPress, Shopify, PrestaShop, Magento, Webflow, TYPO3, Drupal, headless CMS, and custom-built sites.

Data and Pricing

The website claims 200+ project experiences and 17 years of hands-on SEO experience, with clients seeing an average organic traffic increase of +320% within 6 months and 94% of client keywords reaching the Top 3. It also showcases cases in e-commerce, SaaS, real estate, and other sectors. However, these figures mainly come from the website’s own claims and lack third-party audits or publicly verifiable sources. In terms of pricing, standard website monthly services start at around €800–€1,200/month, while e-commerce or highly competitive industries are around €2,000–€6,000/month. Custom quotes are provided after a free SEO audit.

Pros and Cons

The advantages are a complete service workflow, a clear methodology, disclosed pricing ranges, and a commitment to transparent monthly reporting. Under its fully remote model, clients can communicate directly with senior consultants via Slack, Meet, and email, making it suitable for cross-regional collaboration. The drawbacks are that its performance data relies on self-reported claims, while team size, contract duration, service SLAs, and payment methods are not clearly specified. Its services are clearly centered on Google and French/European markets, with no demonstrated capabilities for Chinese channels such as Baidu, WeChat, or Xiaohongshu.

Who It’s For

It is suitable for e-commerce companies, SaaS businesses, B2B service providers, local merchants, real estate firms, training providers, healthcare organizations, and media/affiliate sites that have an ongoing SEO budget and want to reduce dependence on advertising. If a company’s main target markets are France, Belgium, Switzerland, French-speaking Canada, or similar regions, the fit is even stronger.

Access From China

The website does not provide information about access from mainland China, nor does it explain any support capabilities for the Chinese market. Therefore, china_access can only be assessed as unknown.

⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on agence404.com official site.

About this entry

agence404.com is an France Marketing & SEO provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Limited (proxy recommended). Click "Visit Official Site" to reach agence404.com directly.

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Frequently Asked Questions

What is agence404.com?
agence404.com is a France-based Marketing & SEO provider.
Is agence404.com good? Is it worth it?
agence404.com scores 6.0/10 on TG4G — a solid rating, based in 法国. See the in-depth review below for pros, cons and China accessibility.
Is agence404.com usable in China?
agence404.com has unstable mainland China access; we recommend using a reliable proxy. The provider is headquartered in France and primarily serves overseas markets.
How do I sign up for agence404.com?
Visit the agence404.com official site to complete sign-up. Registration typically requires an email (Gmail/Outlook recommended) and a payment method. Most overseas services accept credit card / PayPal / crypto. See the "Visit Official Site" button on this page for the direct link.

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