I updated the page title and meta description of a WordPress website. The changes were saved successfully in the WordPress admin panel.
However, when I open the website from some browsers or devices, the old page information still appears. On another device, the updated page may appear correctly.
I have already tried:
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Clearing the browser cache
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Opening the page in Incognito mode
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Flushing the local DNS cache
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Checking the page source
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Testing the URL from another device
I am trying to understand whether this behaviour could be related to local DNS caching, browser caching, or a CDN/server cache.
How can I determine which cache layer is serving the old version of the page? Are there command-line tools such as curl, nslookup, or dig that I can use to identify the source of the cached response?
I would like to troubleshoot the issue before changing the DNS or server configuration.
