Safari can't verify the identity of the website

This trick just fixed muliple problems for me- the iTunes store now works, the Mac App Store now works, those "can't verify" messages went away, the PayPal site now loads with proper formatting in Safari. This is with Lion (though now the Mac App Store is working, I can upgrade to Mavericks). Thanks!

The problem is that all devices connected to the router have the same issue, I have been testing an Android based tablet and it has not shown the same error as ALL types of Apple products. I have read elsewhere that some people have changed their routers, and that seems to fix the problem. So it looks like a router issue. I am not making a statement, but so far is what makes more sense to me.

I had the same problem, was getting a popup error window at almost every website i visited:

Safari can't verify the identity of the website "www.facebook.com"

Very, VERY annoying. Completely resetting Safari fixed it--but only temporarily.

Now the problem is back, and all my passwords, forms, etc. are erased (from the reset). Doubly annoying. Is there any way to simply turn off site verification or something..? I don't really give a sh-t whether Safari can verify the identity of a website. I verify them myself as they start to load.

My 'Set Date and Time Automatically" was already checked, but have been having exact same identical issue when browsing sites: "Safari can't identify the identity of website www.facebook.com" as previous posts.

I decided to check the date/time on my wireless/router, and found it was incorrect. Changed it to correctly match my OS X 10.9.2 date/time. Which appears to have resolved issue (for now). Don't understand why this would work, but so far so good. Throwing it out there for others to try.

Hpeosj, that sounds like it might work. The problem must be in the router. As it affects all iDevices connected to the network. I took a different route to get the problem fixed. I got the Apple Airport Extreme, replacing my linksys router. I have used it for about a week and no problems. Also, my old router was capping my speed at 28Mbps, now I am getting 58Mpbs, I have blast from Comcast which is 50Mbps.

For all people coming to this thread after July 26th 2014:

There was an issue with a DigiCert certificate that expired and some sites are not being trusted.

Please follow the instructions in this post: http://blog.digicert.com/expired-intermediate-certificate/

Also I had to install a custom certificate when I resolved the original issue, it was asking me for another certificate that wasn't trusted, so I downloaded the new cert from DigiCert website. You can check in that blog post comments how I resolved it.

Good luck!

After trying all the possible suggested solutions from deleting plist files to keychain repairs to resetting safari to removing extensions to resetting dates and times..... that never worked.....very frustrating and annoying really. But what struck me most was that the pop ups came up not only for safari but also iTunes and even contacts too. Also got the same pop ups not only on my macbook pro but also on iPhone and iPad too. then i asked what was common to all three and it was the router. I changed routers and not a single pop up cam up again. Smashed the router immediately.

I had this problem for about a month and stumbled onto a fix that seems to be working. There was a check box in my Netgear router settings that said "automatically adjust for Daylight Savings Time" and it was unchecked. I checked the box and unplugged the router and then plugged it in again, also restarted my macbook and so far, no more warnings. It's been about a week now and it's still working.

I recently mentioned receiving the Safari message ("Safari cannot verify...") in connection with listening to a Norwegian radio station. That was on Thursday 13 October. Today, Safari was playing the station. I am wondering if the simultaneous downloading of a heavy set of files (Microsoft - blush, blush) interfered with the radio broadcasting. In some cases, there may be some banal factor involved in non-verification.

Here's a link to a very similar issue that I had that was resolved, may be helpful to a few of you.

Safari rerouting tumblr to safe.txmblr.com and certificate issues