Operations and troubleshooting
Fix the system without creating a second failure
Evidence-linked runbooks for DNS, email, WordPress and WooCommerce. Every guide starts with diagnosis, preserves rollback and ends with an acceptance gate.
DNS and email
DNS and email
Nameservers versus DNS records
Changing a record edits one answer; changing nameservers delegates the entire zone and can replace web, email and verification records together.
Open runbook →DNS and emailSPF, DKIM and DMARC without breaking mail
SPF authorizes sending infrastructure, DKIM signs messages and DMARC evaluates alignment and policy. They are complementary, not interchangeable.
Open runbook →DNS and emailKeep email working while changing web hosts
Website and mailbox hosting are independent DNS destinations. A nameserver shortcut can disable email even when the new website works.
Open runbook →Troubleshooting
Troubleshooting
Domain still shows the old website
The cause is usually authority, record mismatch, proxy cache, application redirect or local cache—not a mysterious universal propagation timer.
Open runbook →TroubleshootingSSL certificate pending or invalid
Issuance requires the certificate authority to validate the requested names against the correct destination and policy.
Open runbook →TroubleshootingWordPress database connection error
Preserve evidence before changing credentials: database availability, hostname, user permissions, corruption and resource exhaustion produce similar symptoms.
Open runbook →WordPress operations
WordPress operations
Safe WordPress update runbook
An update is a controlled change: inventory, recoverable backup, staging test, small production window and rollback decision.
Open runbook →WordPress operationsWordPress backup and restore drill
A backup is unproven until a clean environment can restore files, database, configuration and media to an agreed recovery point.
Open runbook →WordPress operationsWordPress capacity beyond page-speed scores
Cached pages, uncached login/search/admin and background jobs stress different layers. One synthetic homepage score cannot size a host.
Open runbook →WooCommerce operations
WooCommerce operations
WooCommerce hosting requirements by risk
Cart, checkout, account, webhooks and background tasks are dynamic. Size the host around uncached transactions and recovery, not the cached homepage.
Open runbook →WooCommerce operationsOrder-safe WooCommerce staging and deployment
Copying an old staging database over production can erase orders, customers, stock changes and subscription activity created after the copy.
Open runbook →WooCommerce operationsTroubleshoot WooCommerce scheduled actions
Subscriptions, webhooks, emails and extension jobs can queue or fail even while storefront pages appear healthy.
Open runbook →