Some Pages Showing 503, Others Fine

  • I came across a strange problem that I can’t figure out, so hoping some of you have some ideas!

    A user mentioned the other day that my site had been “down for weeks.” Oh boy. It looked fine to me, though–but then I checked in a Chrome incognito window and sure enough, the homepage (www.infrastructureusa.org) brings up either a 503 or a “too many redirects” error. Same problem in Safari private window. Actually, same problem in any browser that hasn’t already visited the site. If the browser HAS visited the site (and has cached elements, I assume) everything looks fine.

    To thicken the plot, navigating directly to MOST internal pages works fine everywhere. Incognito, Private, whatever…I can go to https://www.infrastructureusa.org/category/blog and it loads fine. Then after that, I can go to the home page and that loads fine, too. Oh, and sometimes the homepage does show up, but with no CSS attached. I can’t figure out a pattern.

    Here’s what I’ve tried, with no change whatsoever:
    -Deactivating all plugins
    -Switching themes
    -Switching SSL plugins (currently using “Force HTTPS”)
    -Switching homepage to new page template
    -Updating all plugins
    -Updating WordPress

    I’ve spent hours on this and don’t seem to be making any headway. Any ideas?

    The page I need help with: [log in to see the link]

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  • Moderator t-p

    (@t-p)

    – The 503 service unavailable error occurs when your web server is unable to get a proper response from a PHP script. This PHP script could be a WordPress plugin, a theme, or a misbehaving custom code snippet.
    – If the error is caused by heavy usage, a server glitch, server temporarily offline for maintenance, the server too busy or concurrent request limit exceeded, or a DDoS attack, then it could automatically disappear in a few minutes.
    – However, if it is caused by bad code on your website, then it will keep occurring unless you find and disable the code that’s causing it.

    If the troubleshooting methods you have already tried fail to resolve the error, then try contacting your hosting provide.

    Also try reviewing: https://www.wpbeginner.com/wp-tutorials/how-to-fix-503-service-unavailable-error-in-wordpress/

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