Inside Checkr’s Tech Stack: Gatsby, ABM, and a Sales-First Funnel

Checkr’s public site serves no self-serve sign-up form, hides its pricing page entirely, and publishes just 15 blog posts across a 200-page sitemap. Yet the company processes millions of background checks for employers like Uber and Instacart. How? The answer lies in a technology architecture that’s deliberately built for enterprise sales, not product-led growth. A headless Gatsby frontend serves static marketing pages via Netlify and Fastly CDN, while a separate authenticated dashboard (dashboard.checkr.com) locks candidate and employer workflows behind Auth0. Meanwhile, a sophisticated account-based marketing engine powered by Demandbase, Clearbit, and ZoomInfo identifies high-intent accounts long before a demo request lands. This is not a tech stack optimized for viral adoption — it’s a stack built to land six-figure contracts.

The Stack at a Glance

Checkr’s digital presence unfolds across at least five distinct subdomains, each serving a different user persona or function. The marketing site (checkr.com) is a static React application generated with Gatsby and hosted on Netlify’s edge infrastructure, with Fastly serving as the CDN. This headless architecture separates content management from front-end rendering, with Storyblok acting as the headless CMS. Marketing teams can update pages, publish case studies, or launch campaign landing pages without touching a single line of React code — a pattern common among growth-stage B2B companies that prize speed over deep customization.

The product layer resides at dashboard.checkr.com, a separate subdomain that handles employer-facing functionality. Authentication is universally gated by Auth0, which supports enterprise SSO, and shielded by Google’s reCAPTCHA to prevent automated abuse. Candidate-facing workflows live at candidate.checkr.com, while a personal data portal (for individuals managing their own background check information) lives at personal.checkr.com. This segmentation isn’t just architectural elegance; it’s a compliance requirement. In the background-check industry, data handling rules differ sharply between employers requesting checks, candidates granting permissions, and individuals exercising data access rights. Isolating these domains minimizes the blast radius of a misconfiguration and makes security audits cleaner.

Beyond the user-facing surfaces, Checkr operates a robust analytics and monitoring backbone. Google Analytics 4 and Amplitude capture both marketing attribution and in-product behavior. Sentry traps runtime errors across the entire stack, while Pingdom provides synthetic uptime monitoring. The presence of OneTrust for cookie consent management signals a mature privacy posture — every visitor interaction is governed by user-selected consent preferences across multiple jurisdictions. Together, these tools form a layered defense that appeals to procurement teams evaluating vendors on SOC 2 and GDPR readiness.

How They Acquire Customers

Checkr doesn’t rely on a typical PLG funnel — no “Start Free” button, no transparent pricing. The site’s sitemap reveals exactly zero conversion pages like /pricing or /signup. Instead, the entire customer acquisition motion orbits around a high-touch, sales-assisted model that begins with intent detection and ends with a demo handoff. At the heart of this motion sits a sophisticated ABM stack: Demandbase identifies target accounts visiting the site, Clearbit enriches those accounts with firmographic and technographic data, and ZoomInfo layers on intent signals and contact intelligence. When a known account from a named list hits the homepage, Marketo can automatically assign a BDR or trigger a personalized nurture sequence.

For prospects who aren’t ready to talk to sales, two tools soften the friction. Qualified deploys a conversational chatbot that can qualify visitors in real time or route them to a scheduled demo. Navattic embeds interactive product demos directly on the site, letting prospects click through core workflows like initiating a background check or reviewing results — no login required, no sandbox provisioning. This “try before you talk” experience educates the buyer without exposing the full platform, and it gives Checkr’s sales team telemetry on which features a prospect engaged with before the first call. The sales handoff itself flows through Marketo CRM, ensuring lead scoring, routing, and activity tracking are unified.

Measurement spans an impressively broad multi-channel attribution layer. Google Analytics 4 and Amplitude handle core analytics, but Checkr also fires pixels from over a dozen ad platforms: Google Ads, Meta, LinkedIn, Bing, Reddit, Quora, and even Spotify. This indicates a demand generation strategy that blankets consumer and B2B networks to capture intent wherever it surfaces. VWO (medium confidence) suggests ongoing conversion rate optimization on the demo request form or chatbot triggers, though the tool may be underutilized given the site’s low content volume. The overall impression is a GTM engine that’s more about quality over quantity — intercepting the right accounts with precision rather than flooding the funnel with unvetted leads.

Infrastructure & Operations

The static marketing site running on Gatsby and Netlify is just the tip of the iceberg. Checkr’s full infrastructure supports multiple applications, each with distinct deployment and security postures. The Fastly CDN edge ensures the public-facing site loads quickly from any geography, and the headless CMS (Storyblok) allows content updates to be published without rebuild delays — a nice perk for campaign timelines. Meanwhile, the dashboard at dashboard.checkr.com is almost certainly a separate web application, likely built with a modern JavaScript framework (React, given the marketing site’s tech) and hosted on its own cloud environment, though Checkr doesn’t expose those details publicly.

Security is woven through every layer. OneTrust manages cookie consent and privacy preferences, mapping directly to GDPR and CCPA obligations. Email security is handled by Proofpoint, with a DMARC reject policy in place and a BIMI record that authenticates the brand’s logo in supported email clients — a signal that Checkr takes phishing and domain spoofing seriously. The DNS scorecard grades out at an overall A, with a security score of 86, delivery at 90, and a perfect resilience score of 100. While DNSSEC wasn’t visible in the scan, the combination of TLS best practices, DMARC enforcement, and the BIMI logo builds immediate trust with enterprise security teams.

On the operations side, Sentry provides real-time error tracking across applications, helping the engineering team catch regressions in API calls or front-end crashes before users raise tickets. Pingdom monitors uptime and response times from multiple global locations, offering a clean SLA story for procurement questionnaires. The integrations don’t stop there: Amplitude and Demandbase are explicitly linked via API, suggesting that product usage data feeds back into the marketing attribution and ABM scoring models. This closed loop between product engagement and account targeting is a hallmark of a data-driven operations culture, even if the visible content machine is lean.

The architectural choice to decouple marketing from the product backend also enables independent deployment cycles. The marketing team can A/B test call-to-action buttons with VWO, update hero copy via Storyblok, or spin up a new campaign microsite — all without touching the dashboard codebase. For a compliance-heavy product, this isolation reduces the risk of a marketing change accidentally exposing authenticated endpoints or breaking candidate workflows. It’s a lesson in scaling safely that many B2B companies learn the hard way after a rushed launch.

What This Means for Competitors

For all its sophistication, Checkr’s stack reveals a striking content gap. The sitemap contains only 200 total pages, and just 15 of those are blog posts. There are no white papers, long-form guides, or interactive assessment tools visible — the kind of content that drives organic search traffic for high-volume queries like “how to run a background check” or “FCRA compliance checklist.” This suggests that Checkr has deliberately deprioritized SEO and top-of-funnel content in favor of a direct sales motion buoyed by intent data and ABM. Competitors hungry for market share can exploit that gap by building a deep content library, gating assets behind lightweight forms, and nurturing leads through email sequences — tools Checkr shows no evidence of implementing. No Intercom, no Mailchimp, no Customer.io appears in the visible tech stack, implying lifecycle automation and email marketing are either absent or entirely outsourced.

That said, competitors shouldn’t underestimate the power of Checkr’s demand interception. With Demandbase and ZoomInfo intent data, the company likely captures a large share of enterprise interest before those buyers ever see a competitor’s blog post. A prospect researching “enterprise background check platforms” might trigger a programmatic ad on LinkedIn, get retargeted on Reddit, and receive an outbound email from a BDR — all within 24 hours — while the competitor’s SEO-optimized guide sits unread. The ABM moat is real and expensive to replicate. The stack (Marketo, Demandbase, Clearbit, ZoomInfo) requires significant budget and integration lift, plus the data enrichment and scoring logic that turns raw signals into actionable sales plays.

Checkr’s product architecture also raises a barrier. The separation of candidate, employer, and personal portals with Auth0 implies a fine-grained permission model and data partitioning that many startups struggle to build in their first release. Pair that with OneTrust consent management and Proofpoint email security, and you have an enterprise-readiness package that can shave months off a vendor security review. Founders building in adjacent compliance-heavy verticals should note that these elements aren’t nice-to-haves — they’re procurement checkboxes that can stall a deal if absent. A competitor entering the market with a simpler, more product-led signup flow but lacking these enterprise signals will struggle to displace Checkr in mid-market and enterprise accounts without a comparable security story.

Ultimately, Checkr’s stack is optimized for a particular motion: land-and-expand through sales, not self-serve. The limited blog count and missing conversion pages may look like a weakness on paper, but the ABM engine and enterprise-grade infrastructure likely convert higher contract values per closed deal. Competitors that aim to beat Checkr at its own game will need to match both the sales efficiency and the security posture — a tall order — while those that differentiate on product-led ease-of-use must be ready to handle the compliance complexity that comes with scaling.

Key Takeaways

• Sales-first, not product-led: Checkr deliberately hides pricing and signup, using Auth0-gated access and a headless CMS (Gatsby + Storyblok) to route all demand through a sales-assisted funnel. This architecture prioritizes enterprise deal size over user volume.
• ABM stack as a growth engine: The combination of Demandbase, Clearbit, and ZoomInfo enables account-level targeting and enrichment long before a visitor fills out a form. Coupled with Qualified chat and Navattic interactive demos, it creates a high-touch qualification layer that compensates for minimal SEO content.
• Enterprise security is engineered in, not bolted on: OneTrust for consent, Proofpoint with DMARC reject and BIMI, an A-grade DNS scorecard, and reCAPTCHA protection on login pages show that Checkr treats compliance as a product feature — a deal accelerator with security-conscious buyers.
• Content gap leaves opportunity: With only 15 blog posts and no visible lifecycle automation tools (no email marketing platform, no in-app engagement tool), Checkr’s top-of-funnel is vulnerable to competitors who invest in organic search and nurture programs — if those competitors can also afford to build or buy the intent interception capabilities.
• Modular architecture enables parallel scaling: The separation of marketing (Gatsby/Netlify), app (dashboard subdomain), and candidate/personal portals means teams can ship independently without risking cross-contamination — a pattern worth emulating for any multi-tenant B2B platform.

What Founders and Product Leaders Should Learn

If you’re building a B2B product in a regulated industry, take note of Checkr’s architectural choices. Decouple your marketing site from your application using a static site generator and a headless CMS — Gatsby and Storyblok are a solid modern stack, but Hugo + Contentful or Next.js + Sanity work just as well. The key is isolation: marketing changes should never break the customer portal, and vice versa.

Invest early in the enterprise trust trifecta: consent management (OneTrust or Cookiebot), authentication (Auth0 or Okta), and email authentication (DMARC reject, BIMI). These tools might seem like overhead in the first month, but they signal maturity during vendor risk assessments that can delay or kill large deals. A DNS scorecard below a B grade can stop a procurement process cold — don’t ignore it.

Recognize that a sales-led model doesn’t require a thick content library if you have strong intent data and ABM tooling. But the tradeoff is a higher cost per acquisition and a dependency on expensive platforms like Demandbase. If you’re considering this path, start with Clearbit for enrichment and a conversation tool like Chili Piper or Qualified to capture intent on-site. Only invest in full ABM when you have a clear list of hundreds of target accounts whose buying signals you can consistently detect.

Finally, even in a sales-first motion, don’t leave expansion revenue on the table. If you’re already instrumented with Amplitude or Heap, feed product usage data into an engagement platform like Customer.io or Intercom to trigger lifecycle emails and in-app messages. Checkr’s current stack shows a gap here — a gap you can preemptively close.