Pantheon.io Performance XL, $ 916.67/mo. on Linux Cloud

Performance XL, also called Performance Extra Large in the plan details, is aimed at larger high traffic sites without SLA requirements. It supports 300,000 monthly visits on monthly billing or 420,000 monthly visits on annual billing, plus 1.5M pages served on monthly billing or 2.1M pages served on annual billing. It includes 4 load balanced application containers, a 1024 MB application memory limit, 32 PHP workers, load balancing, high performance edge cache, Object Cache, Object Cache Pro WordPress Plugin, Pantheon Search, New Relic Performance Monitoring, manual backups, automated backups, immutable production code, and HTTPS coverage for up to 70 custom domains. The lowest effective monthly price is $916.67 when paid annually at $11,000 per year; month-to-month billing is $1,150 per month. It is suitable for larger portfolios or demanding single sites that still fit the Performance no-SLA category.

Pantheon is a managed cloud platform for WordPress, Drupal, and Next.js projects. Production site plans use separate Dev, Staging, and Production environments, Git-based deployment workflow, built-in version control, CLI access through Terminus, logs, global CDN, caching, HTTPS, immutable production code, and the Pantheon Dashboard for day-to-day operations. Backups are built into the platform, with manual and automated backups on paid site plans, 1 or 6 months of backup retention, and 7 automated backups in the plan comparison. Sites can be launched in US, AU, CA, or EU regions; application containers, database containers, Redis cache, Solr search, distributed filesystem, request routing, backups, and clone jobs stay in the selected region. Billing for self-serve online purchases uses credit card payment. Support is available through dashboard chat, helpdesk ticketing, and phone for emergency assistance, with 24x7 access on higher workspace tiers. Traffic is counted through site visits and pages served rather than a conventional GB transfer allowance. Annual Performance and Elite plans include one month of overage protection for externally driven traffic spikes or a yearly peak event, with four months for qualified nonprofits. Paid site plans are required before connecting custom domains and taking a site live. Add-ons and professional services can add extra cost, and downgrades do not receive prorated refunds or credits.