Seolyzer
SEOLYZER SAS is a French SaaS company providing an all-in-one technical SEO data platform combining unlimited-scale crawling, real-time server log analysis, and Google Search Console data fusion for enterprise SEO teams and independent professionals, with full French data residency under GDPR compliance.
- Company typePrivate
- Founded-
- HeadquartersChoisy-le-roi, France
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Seolyzer does
SEOLYZER SAS is a French private SaaS company headquartered in Choisy-le-Roi, France, that operates a unified technical SEO data platform targeted at enterprise SEO teams and independent SEO professionals. The platform combines four integrated modules: an SEO Crawler capable of crawling sites exceeding 50 million URLs at 1,000 URLs per second, a Log Analysis module that ingests server events from native collectors (PHP, Apache, Nginx, Varnish) and from storage connectors (Cloudflare, Amazon S3, Akamai, OVH) and processes hundreds of millions of log lines daily in real time, a Cross Analysis module that fuses crawl, log, and Google Search Console data to detect orphan, ignored, and inactive pages plus redirect and sitemap issues, and a REST API that exposes raw and aggregated data in JSON with no limits on calls or rows and native compatibility for BigQuery and Power BI. Page categorization supports hierarchical, retroactive segmentation for fine-grained analysis of Googlebot behavior by page type.
All infrastructure is hosted on OVH servers in Roubaix, France, with on-the-fly anonymization of personal data extracted from logs, yielding a GDPR/RGPD-compliant posture under a named Data Protection Officer (Olivier PAPON). The business operates on a subscription SaaS model with monthly and annual billing options and a tacit renewal mechanism; pricing is not publicly disclosed and is gated behind a HubSpot-driven demo booking flow. Distribution is direct via the company website (seolyzer.io), the REST API, and demo-led enterprise sales. The company is privately held with a stated share capital of 5,000 euros, no recorded institutional funding rounds, no disclosed subsidiaries or parent company, and only one named officer in public materials. Named customer logos include Manomano (e-commerce), Club Med (hospitality), Ankorstore (B2B marketplace), and independent consultant Aleyda Solis.
Seolyzer firmographics
Firmographics- Name
- Seolyzer
- Legal name
- SEOLYZER SAS
- Website
- https://seolyzer.io
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- SEOLYZER SAS is a French SaaS company providing an all-in-one technical SEO data platform combining unlimited-scale crawling, real-time server log analysis, and Google Search Console data fusion for enterprise SEO teams and independent professionals, with full French data residency under GDPR compliance.
- Ownership category
- akta.pro rank
Seolyzer industry classification
Industry- Product category
- Technical SEO Analytics Software
- NAICS
- Software Publishers (5132), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Technical SEO (Audits, Crawl/Indexing, Site Architecture) (BPAFAJAA)
- akta.pro secondary industries
- Enterprise SEO (Large Sites, Governance, Workflow) (BPAFAJAF), SEO Analytics, Reporting & Attribution (KPIs, Dashboards, Forecasting) (BPAFAJAI), SEO Platform & Tooling Services (Implementations, Training, Enablement) (BPAFAJAJ)
Keywords
Where Seolyzer is headquartered
LocationHeadquarters
- HQ city
- Choisy-le-roi
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Seolyzer business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales
Revenue model
- SaaS Subscription: Monthly and annual subscription plans for access to the Seolyzer technical SEO platform. Subscribers gain access to crawler, log analysis, cross-analysis, and API features. Payment is via automatic monthly or annual direct debit.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Subscription plans with monthly and annual billing |
| Subscription | Annual | Annual subscription with tacit renewal |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Seolyzer product offering
Product offeringCore offering
Seolyzer sells a SaaS technical SEO data platform that combines an automated website crawler, a server log analysis module, a cross-analysis engine that correlates crawler and log data, and a REST API exposing the underlying data. The product is targeted at SEO professionals, agencies, and enterprise teams that need large-scale, GDPR-compliant crawl and log insight. Pricing is delivered through monthly and annual subscriptions with an enterprise/demo-led tier for larger accounts.
Product overview
Seolyzer is an all-inclusive technical SEO data platform providing a unified SaaS solution combining four core modules: the SEO Crawler for website auditing and indexability analysis, Log Analysis for real-time Googlebot behavior tracking, Cross Analysis for fusing crawl and log data with Google Search Console, and a REST API for data retrieval. The platform processes hundreds of millions of log lines daily, handles crawls up to 50 million URLs, and stores all data in France.
Differentiator
Problem solved
Functional benefit
Products and services
- SEO Crawler
Quantifiable outcome
- Google allocates crawl budget to sites, and Seolyzer helps identify that Google ignores on average 50% of pages considered low quality
- +1 more outcomes
Companies that use Seolyzer
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles2 records
Seolyzer technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
Feature6 records
Seolyzer partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered infrastructure and core.
- OVHinfrastructureOVH is the web hosting provider for Seolyzer's infrastructure, located in Roubaix, France. Seolyzer's legal document explicitly mentions OVH as the hosting provider.
- StripecoreStripe is the third-party payment processor for handling banking data during subscription payments. Seolyzer's legal document states that banking data is neither stored nor processed by Seolyzer but by Stripe as a trusted payment third party.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
Seolyzer competitors and assessment
Company assessmentDirect peers
- Ryte: All-in-one technical SEO and content optimization platform for enterprise websites; competes with Seolyzer across crawler, monitoring, and content quality workflows.
- OnCrawl: French SaaS technical SEO platform combining crawler, log analysis, and data-driven audits; overlaps almost 1:1 with Seolyzer's feature set and competes for the same European enterprise SEO buyer.
- Sitebulb: Technical SEO auditing and crawler platform for SEO professionals and agencies; targets the same technical-SEO practitioner persona as Seolyzer with comparable crawl and audit depth.
- Lumar (formerly DeepCrawl): Enterprise-scale technical SEO crawler and site intelligence platform used by large global websites; competes directly with Seolyzer's crawler and cross-analysis modules for Fortune-500 accounts.
- Screaming Frog SEO Spider: Industry-standard desktop SEO crawler widely used by SEO professionals; competes with Seolyzer's crawler capability although delivered as a desktop tool rather than cloud SaaS.
- Botify: Enterprise technical SEO platform offering crawler, log analysis, and SEO analytics for large sites — the closest direct competitor to Seolyzer's crawler-plus-log combination and also a frequent point of comparison in enterprise RFPs.
- ContentKing: Real-time SEO monitoring and auditing SaaS focused on continuous change detection; overlaps with Seolyzer's real-time log and crawl monitoring use cases for SEO teams.
Broad incumbents
- Semrush: Largest independent SEO/SEM SaaS suite with site audit, log file analysis, and API; competes with Seolyzer as a broad incumbent expanding into technical SEO depth.
- Ahrefs: Broad SEO platform combining site audit, crawler, keyword research, and backlink analysis at global scale; competes with Seolyzer on the site-audit/crawler surface while offering a much wider portfolio.
Emerging players
- JetOctopus: Cloud-based technical SEO crawler and log analyzer for enterprise sites; an emerging specialist with overlapping features in large-scale crawling and log analysis.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Seolyzer social profiles
Digital presenceSeolyzer compliance and trust
Trust signalCompliance2 records
Seolyzer financial estimates
Financial estimateRevenue estimate
Valuation estimate
Seolyzer leadership team
Management profileNumber of profiles
Profiles1 record
Seolyzer funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Seolyzer M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Seolyzer
What does Seolyzer do?
Seolyzer sells a SaaS technical SEO data platform that combines an automated website crawler, a server log analysis module, a cross-analysis engine that correlates crawler and log data, and a REST API exposing the underlying data. The product is targeted at SEO professionals, agencies, and enterprise teams that need large-scale, GDPR-compliant crawl and log insight. Pricing is delivered through monthly and annual subscriptions with an enterprise/demo-led tier for larger accounts.
Is Seolyzer a public or private company?
Seolyzer is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Seolyzer founded?
Seolyzer was founded in -1. It employs 1 to 10 people.
Where is Seolyzer based?
Seolyzer is headquartered in Choisy-le-roi, France, in the Europe region.
How does Seolyzer make money?
One revenue line is on record: saaS Subscription.
Who are Seolyzer's main competitors?
Direct peers on record are Ryte, OnCrawl, Sitebulb, Lumar (formerly DeepCrawl), Screaming Frog SEO Spider, Botify and ContentKing. Broad incumbents are Semrush and Ahrefs. JetOctopus is listed as an emerging player.
Does Seolyzer have an API?
Yes. REST API that allows retrieval of raw and aggregated SEO data in JSON format. Supports unlimited API calls and line fetches in context of fair use. Enables access to crawl data, log data, cross analysis data, Search Console & CrUX Data. Compatible with BigQuery and Power BI for analyzing large datasets. No limitations on number of calls or rows fetched. Developer documentation is at api.seolyzer.io.
What industry is Seolyzer in?
Seolyzer's product category is Technical SEO Analytics Software. Its primary akta.pro industry code is BPAFAJAA, Technical SEO (Audits, Crawl/Indexing, Site Architecture), with a secondary code of BPAFAJAF, Enterprise SEO (Large Sites, Governance, Workflow). Its NAICS code is 5132 and its SIC code is 7370.