HTTP response headers added by WPVIP
A set of default HTTP response headers are added to every site that is hosted on the VIP Platform. These headers help WPVIP to monitor the platform and can be useful for troubleshooting the origin of a request.
Tag: tech-ref
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Phishing
“Phishing” is a cyberattack that tricks users through fraudulent websites, emails, text messages, phone calls, and other communications. The attacker aims to persuade the user to reveal sensitive information, enter login credentials, or download malware. Phishing is a form of social engineering.
Information to include in a Support ticket
To troubleshoot and investigate a Support ticket in an efficient and effective manner, the WPVIP Support team needs to fully understand the scope, nature, and context of a request. If the initial request in a ticket does not provide sufficient information, the amount of time required to communicate and resolve the issue will increase.
Geographical Redundancy for disaster recovery
The Geographical Redundancy feature enables an application to be fully restored and operational at an alternate data center with minimal downtime and data loss if the primary data center experiences a critical failure.
Identify slow queries
Slow queries are SQL database queries made by application code that take an unusually long time to execute. An increase in slow queries will reduce the efficiency and resiliency of an application’s database. A site with frequent slow queries might appear to operate well under normal amounts of traffic, but can perform poorly if the amount of traffic increases even by small amounts.
Notification event types
Notifications for organizations and Notifications for applications can be configured for a variety of event types. Event types include detected performance metrics anomalies, the success or failure of code deployments, and vulnerabilities detected by Codebase Manager in the plugins deployed to an environment.
Performance metrics anomalies
Performance metrics anomalies are events that indicate a degradation in performance related to an environment’s object cache hit rate, slow queries, number of 5xx responses from the origin server, or the rate of 429 responses from the edge server—as measured against the known range of metrics for a performant application.
PHP sessions
WordPress VIP supports PHP sessions for storing short-lived, ephemeral session data. Session data is backed by Memcached to improve performance, but to ensure a site’s stability and scalability the performance of its underlying code should be optimized wherever possible.
Database access
Direct access to an environment’s database is limited, but users can view data in a read-only phpMyAdmin console session or interact with the databases on WPVIP through WP-CLI commands run via VIP-CLI.
Limitations of Enterprise Search
Enterprise Search can improve the performance of search results for a WordPress site and is highly customizable, however there are some limitations and default behaviors that cannot be overridden.