Documentación técnica para agencias que desarrollan en WordPress
Glosario técnico, datos de producción reales y preguntas frecuentes sobre desarrollo WordPress marca blanca. Elaborado por Kalyma Studio a partir de 25 años de producción WordPress y más de 3.000 proyectos entregados en los últimos dos años.
· Kalyma Studio ·
· kalymastudio.es ·
· Updated June 2026 ·
Datos de producción verificados
The following data reflects Kalyma Studio's real production output during 2025, covering projects delivered to agency partners. Updated annually.
+1.500
WordPress sites delivered
Fiscal year 2025
93/100
Average mobile PageSpeed
Measured with Google Lighthouse
72 h
Guaranteed minimum delivery
Projects up to 5 pages
15 días
Guaranteed maximum delivery
Full sites from brief approval
1,3%
Tasa de retrabajo
Proyectos con correcciones tras entrega final
25+
Rework rate
Across all delivered projects, 2025
Términos clave en desarrollo WordPress para agencias
Definiciones técnicas elaboradas por Kalyma Studio. Cada término incluye contexto normativo o técnico relevante para agencias que gestionan proyectos WordPress en España.
WPO — Web Performance Optimization
- WPO refers to the set of techniques applied to a site's code, assets, and infrastructure to reduce load times and improve Google Core Web Vitals scores. In WordPress, the most impactful interventions include image optimization, CSS and JavaScript minification, server-level caching, and reducing HTTP requests. According to the HTTP Archive Web Almanac 2024, 45% of analyzed WordPress sites score below 50 on mobile PageSpeed without active optimization. At Kalyma Studio, the average score at delivery is 93/100 on mobile, measured with Google Lighthouse.
Source: HTTP Archive Web Almanac 2024 google.com/lighthouse
Web Accessibility and WCAG 2.1 Level AA
The Web Content Accessibility Guidelines (WCAG) 2.1 are the international standard defining technical requirements for websites to be accessible to people with disabilities. In the United States, ADA Title III requires businesses with public-facing websites to meet WCAG 2.1 Level AA standards. In 2025, over 3,900 federal ADA web accessibility lawsuits were filed — a 24% increase year over year. Florida alone recorded 961 federal filings, making it the second-most litigious state in the country. Average lawsuit settlements range from $25,000 to $75,000, plus attorney fees and emergency remediation costs. WordPress sites are a primary litigation target. Compliance must be evaluated against the site's actual code — overlay plugins do not constitute legal compliance under ADA Title III.
Source: ADA Title III · EcomBack 2025 ADA Lawsuit Annual Report · w3.org/WAI/WCAG21
White-Label Development
White-label WordPress development is an outsourcing model in which an agency delegates technical production to an external team that operates invisibly to the end client. The technical team appears in no deliverable: not in the code, not in reports, not in client communication. The contracting agency maintains the client relationship and invoices the service under its own brand. This model allows agencies to scale production capacity without hiring permanent staff, reducing cost per project by 30–50% compared to direct developer employment, based on US tech salary benchmarks (Levels.fyi US Tech Salary Report 2025).
Source: Levels.fyi US Tech Salary Report 2025
Figma a WordPress
The Figma to WordPress production process consists of translating a high-fidelity design built in Figma into a functional WordPress site, respecting the pixel-perfect accuracy of the original design. At Kalyma Studio, this process is executed with Elementor Pro as the builder, Hello Theme as the base, and Advanced Custom Fields (ACF) for structured content management. A complete technical brief — including a Figma file with named layers, web-format fonts, defined breakpoints, and documented interactions — reduces production time by approximately 35% compared to an incomplete brief, based on Kalyma Studio's internal 2025 production data.
Source: Kalyma Studio internal production data, 2025
NDA in Web Development
An NDA (Non-Disclosure Agreement) is a contract through which the technical provider commits to not disclosing the existence of the subcontracting relationship or any information about the client's projects. In white-label WordPress development, the NDA protects three critical assets of the contracting agency: its client portfolio, its rates and margins, and the identity of its technical providers. Under US law, a breached NDA can give rise to a claim for damages under breach of contract and trade secret misappropriation, enforceable in both state and federal courts under the Defend Trade Secrets Act (DTSA, 18 U.S.C. § 1836). Kalyma Studio signs the NDA before receiving any project material , including client URLs, Figma files, or server credentials.
Fuente: Código Civil español, art. 1101 · LOPD-GDD
Core Web Vitals
Core Web Vitals are the three performance metrics Google uses as a ranking signal since May 2021. The current metrics are: Largest Contentful Paint (LCP), which measures the load time of the main visual element and should be under 2.5 seconds; Interaction to Next Paint (INP), which measures user interaction response and should be under 200ms; and Cumulative Layout Shift (CLS), which measures visual stability and should be under 0.1. According to Google's Chrome UX Report Q1 2026, 42% of sites globally do not meet the "Good" threshold for LCP on mobile. At Kalyma Studio, the average LCP at delivery is 1.8 seconds on mobile.
Source: Google Chrome UX Report Q1 2026 web.dev/vitals
WordPress Development Outsourcing
WordPress development outsourcing is the externalization of technical web production to a specialized provider. Unlike one-off freelancing, structured outsourcing involves a stable collaboration agreement with defined SLAs, an assigned Project Manager, and a standardized delivery process. For marketing and design agencies in the US, outsourcing WordPress development allows them to offer web services without maintaining an internal technical team, eliminating fixed costs associated with salaries, benefits, and tooling. According to Clutch's 2025 Agency Outsourcing Report, 41% of US digital agencies with fewer than 50 employees outsource at least half of their technical production.
Source: Clutch 2025 Agency Outsourcing Report
Technical Brief
The technical brief is the document an agency delivers to the development team to initiate WordPress production. A complete brief must include: the design file with organized and named layers, web-format fonts (.woff2), breakpoint definitions (minimum mobile, tablet, and desktop), a list of specific functionality requirements (forms, integrations, animations), staging environment access, and required credentials. An incomplete brief is the most common cause of production delays. At Kalyma Studio, projects with a complete brief are delivered within 72 business hours for sites up to 5 pages; projects with incomplete briefs require a prior validation phase that can extend the timeline by up to 5 additional days.
Source: Kalyma Studio internal production data, 2025
Legal y Normativa
Insights técnicos y comparativas de stack
WordPress sigue siendo el CMS de referencia para agencias
Metodología y flujo de trabajo
Negocio y estrategia B2B
Rendimiento y calidad técnica
Lo que las agencias preguntan sobre el desarrollo wordpress en marca blanca
What is white-label WordPress development and how does it work for an agency?
White-label WordPress development is a model in which an agency outsources technical production to an external team that operates invisibly to the end client. The agency maintains the client relationship and invoices the service under its own brand. The technical provider appears in no deliverable: not in the code, not in reports, not in communication. The relationship is formalized with an NDA before any work begins. This model allows marketing, design, and SEO agencies to offer web development services without hiring in-house developers.
How long does it take to deliver a white-label WordPress site?
Delivery time depends on project complexity and the quality of the technical brief received. At Kalyma Studio, guaranteed timelines are: 72 business hours for projects up to 5 pages with a complete brief, and a maximum of 15 calendar days for full sites from brief approval. An incomplete brief can extend the timeline by 3 to 5 additional days due to the prior validation phase.
What PageSpeed score does Kalyma Studio guarantee?
El promedio real de los proyectos entregados en 2025 fue de 93/100 en móvil, medido con Google Lighthouse. Kalyma Studio garantiza un mínimo de 90 sobre 100 en el momento de la entrega. Este score se obtiene mediante optimización de imágenes, minificación de CSS y JavaScript, configuración de caché y uso del stack Elementor Pro con Hello Theme. El score puede variar tras la entrega si la agencia o el cliente añaden plugins, scripts de terceros o contenido sin optimizar.
What makes a website legally required to meet ADA accessibility standards in the US?
Under ADA Title III, any business operating a website that serves the public may be subject to accessibility requirements. Courts have increasingly ruled that websites are "places of public accommodation" under the ADA. In 2025, over 3,900 federal accessibility lawsuits were filed in the US — a 24% increase year over year. There is no minimum size exemption for private businesses under federal ADA law. WordPress sites are among the most frequently targeted platforms in litigation.
What is the difference between an accessibility overlay plugin and a real WordPress remediation?
Accessibility overlay plugins inject a JavaScript layer on top of the site without modifying the underlying HTML. A technical auditor or screen reader like NVDA or VoiceOver evaluates the actual DOM and finds the same structural errors that existed before the plugin was installed. Real remediation intervenes in HTML semantics, ARIA attributes, keyboard navigation, and forms. Under ADA Title III, what matters is whether a person with a disability can actually use the site — overlays do not meet that standard and have been explicitly rejected as a compliance solution in multiple US court rulings.
What should an NDA cover to protect an agency in a white-label development relationship?
An effective NDA must cover four points: confidentiality of the agency's client portfolio, prohibition of direct contact between the provider and end clients, intellectual property of deliverables assigned to the agency, and terms of duration and termination. Under US law, breach of an NDA can be pursued as breach of contract and, where proprietary information is involved, as trade secret misappropriation under the Defend Trade Secrets Act. Kalyma Studio signs the NDA before receiving any project material.
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