Who This Guide Is For
You own the technical decision for a store launch or replatform. You want to set clear eCommerce hosting requirements, avoid outages, and scale without surprises. Use this as your checklist and vendor brief.
The Non-Negotiables, What Every Stack Must Deliver
- Reliable uptime with clear SLAs.
- Predictable performance under load.
- Security that meets your risk posture.
- Data integrity with backups and recovery.
- Native observability and fast support.
- Room to scale without a new contract each time.
Why Hosting Choices Affect Revenue
Speed and availability drive conversion, cart completion, and trust. A site that loads in 1 second earns far more orders than the same site at 5 to 10 seconds. Portent found sites at 1 second convert up to 2.5 times higher than at 5 seconds, and 1.5 times higher than at 10 seconds, so performance targets are revenue targets https://portent.com/blog/analytics/research-site-speed-hurting-everyones-revenue.htm Portent. Cart friction compounds the risk. The global average cart abandonment rate sits at 70.19 percent, so any slowdown or error during checkout makes losses worse https://baymard.com/blog/ecommerce-checkout-usability-report-and-benchmark Baymard Institute.
Uptime, SLAs, And SRE Expectations
Set an SLA of 99.95 percent or higher with credits that matter. Ask for historic uptime, not claims. Confirm monthly and quarterly SLOs, not only annual rollups. Require a public status page and root cause analyses for P1 incidents. Make site reliability engineering a shared function, with on call runbooks and escalation ladders.
What to specify
• SLA 99.95 percent minimum, with cash credits or fee reductions that scale by severity.
• P1 response under 15 minutes, P1 mitigation under 60 minutes.
• Scheduled maintenance windows with at least 7 days notice.
• Clear caps on planned downtime per month.
Performance Targets That Map To Conversion
Page speed is not a vanity metric. It decides conversion. You need hard targets for real users, not lab tests.
Targets
• Time to First Byte under 200 ms on median mobile.
• Largest Contentful Paint under 2.5 seconds on 75th percentile mobile.
• Server response p95 under 500 ms during peak events.
• Warm and cold cache targets documented.
Load testing
Ask for a load test before go live. Simulate real traffic, product search, cart, payments, and order status. Record p50, p95, and p99. Capture error rates and auto scaling behavior.
Security Controls That Reduce Business Risk
The average global cost of a data breach reached 4.88 million dollars in 2024, so security decisions have direct financial impact https://cdn.table.media/assets/wp-content/uploads/2024/07/30132828/Cost-of-a-Data-Breach-Report-2024.pdf Table Media.
Baseline controls
• WAF with managed rules, bot mitigation, and rate limiting.
• DDoS protection at the network and application edge.
• TLS 1.2 or higher, HSTS, perfect forward secrecy.
• Regular pen tests and quarterly patch cycles.
• Secrets management, key rotation, and MFA for all admin access.
• Tokenized payment flows with PCI DSS scope documented.
Rising attack volume
Plan for spikes. Record DDoS capacity in Tbps and Bpps, and ask for proof. Providers reported record hyper volumetric attacks in 2025, including peaks near 22.2 Tbps, so capacity matters https://www.pcgamer.com/hardware/cloudflare-mitigates-yet-another-record-breaking-ddos-attack-which-at-22-2-tbps-is-nearly-twice-as-big-as-the-last-hyper-volumetric-attack/ PC Gamer.
Scalability And Elasticity
Traffic is spiky. Flash sales, product drops, and seasonal peaks will stress the platform. Your eCommerce hosting must scale vertically and horizontally without a ticket.
What to require
• Auto scaling rules tied to CPU, memory, and queue depth.
• Database read replicas and write capacity plans.
• CDN with edge caching, image optimization, and regional POPs.
• Queue based background jobs, not synchronous calls for heavy tasks.
• Clear rate limits and guidance to avoid throttling during promos.
Compliance And Data Governance
List your obligations by region. PCI DSS, GDPR, CCPA, CPRA, and data residency rules must be explicit. Confirm audit frequency and evidence you can access. Map data flows for PII, orders, and payment tokens.
Access control
Use SSO and role based permissions for console and admin tools. Enforce least privilege. Log every admin action and export logs to your SIEM.
Backups, Disaster Recovery, And RTO/RPO
You need hard numbers for Recovery Time Objective and Recovery Point Objective. Test restores before launch.
What good looks like
• Automated daily backups, point in time restore for databases, and object versioning for assets.
• RPO under 15 minutes for orders and carts, RTO under 60 minutes for storefront.
• Cross region replication and a documented failover runbook.
• Quarterly disaster recovery drills with results shared.
Observability And Incident Response
You cannot fix what you cannot see. Require unified logs, metrics, and traces, with read access for your team.
Visibility checklist
• Real user monitoring for Core Web Vitals and errors.
• APM traces from edge to database.
• Alerting on SLO breaches.
• Exception tracking for checkout and payment flows.
• Runbooks that map alarms to actions.
Database And Search Requirements
Catalog and order data are the core of your business. Treat them as first class.
Database
• Managed relational database with HA, backups, and encryption at rest.
• Connection pooling and retry logic documented for your app.
• Query budgets and slow query logs available to your team.
Search
• Managed search with synonyms, typo tolerance, and relevance tuning.
• Zero downtime reindexing and versioned schemas.
• SLA and scaling plan for peak query rates.
Edge, CDN, And Media Handling
Push content and logic closer to buyers. Use a CDN with smart caching and built in image transforms.
Requirements
• Cache rules for HTML, JSON, and assets.
• Signed URLs for media.
• Next gen formats like AVIF and WebP with responsive sizing.
• Video delivery with adaptive bitrate and caption support.
Payment And Checkout Reliability
Payment outages are expensive. Downtime costs grow quickly for larger firms, with most enterprises now estimating over 300,000 dollars per hour of downtime, so protect the checkout path.
Controls
• Multiple gateways or processor failover where supported.
• Idempotent payment intents to prevent double charges.
• Webhook retries with signing and dead letter queues.
• Clear SLOs for authorization latency and success rates.
Email, SMS, And Webhook Deliverability
Receipt, order, and reset emails are part of the critical path. Use dedicated IPs, DMARC, SPF, and DKIM. For SMS, confirm throughput and carrier compliance. For webhooks, record retry behavior and signing keys.
Staging, Preview, And Safe Deployments
You need parity environments to test changes. Use staging with masked data and feature flags to decouple deploy from release.
Release safety
• Blue green or canary deployments.
• Database migration strategy with rollback.
• Synthetic checks after each deploy.
• Automatic rollback on health check failures.
SEO And Caching Considerations
Performance affects ranking and revenue. Cache HTML carefully for collection and product pages. Respect personalization and geolocation without breaking cache hit rates. Pre render sitemaps and feeds. Keep robots rules and redirects under version control.
Cost Model And Capacity Planning
Avoid surprises by modeling peak. Include base hosting, CDN egress, image processing, storage, logging, APM, and third party APIs. Track cost per order and cost per 1,000 requests. Tie budgets to business KPIs.
Vendor Evaluation Questions You Should Ask
- What was your real uptime over the last 12 months, by region and product?
- Show p95 response times from real users for PDP, cart, and checkout.
- What are your DDoS and WAF limits, and how do you enforce them?
- Share your last three P1 postmortems and what changed.
- How fast can we restore a 200 GB database to a point in time during peak?
- Can you simulate 10 times expected peak and hold for one hour before go live?
- How do you isolate noisy neighbors on shared infrastructure?
- What logs and traces do we get by default, and can we export them?
Launch-Ready Security And Risk Checklist
• WAF, DDoS, bot management, and rate limiting on.
• TLS, HSTS, and secure cipher suites verified.
• Admin SSO and MFA enforced.
• Keys and secrets rotated.
• Pen test issues resolved.
• Backups tested with full restore.
• DR plan rehearsed with clear RTO and RPO.
• Observability hooked to your pager.
• Runbooks reviewed with on call.
Migration And Cutover Plan
Plan the move like a release. Freeze content early. Run trial imports for products, customers, orders, redirects, and media. Verify taxes, payments, shipping, and search in staging. Do a live rehearsal with a subset of traffic. Keep rollback options.
Proof Points For Executives
Executives want numbers that connect to risk and revenue.
• Cart abandonment sits at 70.19 percent on average, so checkout friction and slow hosting tax every channel.
• Sites that load in 1 second convert far higher than at 5 to 10 seconds, so speed goals must be hard requirements, not nice to have..
• The global average cost of a data breach reached 4.88 million dollars in 2024, so weak controls create large downside risk.
• Hourly downtime now exceeds 300,000 dollars for most mid size and large enterprises, so SLAs and DR plans protect revenue.
• Attack volumes keep breaking records, with reported peaks near 22.2 Tbps in 2025, so capacity and mitigation are table stakes
eCommerce Hosting Requirements Template You Can Reuse
Copy this into your RFP or vendor checklist.
Service levels
• SLA 99.95 percent or higher with graduated credits.
• P1 response under 15 minutes, mitigation under 60 minutes.
• Public status page and incident postmortems.
Performance
• TTFB under 200 ms, LCP under 2.5 seconds on 75th percentile mobile.
• p95 server response under 500 ms at peak.
• Proven load test at 10 times peak.
Security
• WAF, DDoS, bot management, TLS, HSTS.
• Pen tests, patch cadence, secret rotation.
• PCI scope documented, tokenized payments.
Data protection
• Daily backups, PITR, versioned object storage.
• Cross region replication, quarterly DR drills.
• RTO 60 minutes, RPO 15 minutes for core data.
Observability
• RUM, APM, log exports, alerting, dashboards.
• Error budgets and SLOs for PDP, cart, checkout.
Scale
• Auto scaling rules, DB replicas, queue workers.
• CDN with global POPs and image transforms.
Environments and release
• Staging parity, feature flags, canary or blue green.
• Migration rehearsal and rollback plan.
Support
• 24×7 support, phone and chat.
• Named TAM for enterprise plans.
• Quarterly reviews with action plans.
Final Guidance on eCommerce Hosting
Set your eCommerce hosting plan in writing before vendor selection. Tie every requirement to a measurable business outcome. Test before launch, rehearse recovery, and make speed and uptime non-negotiable.
If you’re preparing to launch or migrate, CV3 can help assess your infrastructure and hosting architecture.
→ Contact CV3 to start your readiness review.
