SSL Verification Errors

[wybiral]

Pew Research, Route Fifty, and Slate are all giving SSL verification errors that look like this:
Cannot connect to host slate.com:443 ssl:True [SSLCertVerificationError: (1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:997)')]
However the certificate info seems normal (this request was on January 29, 2022, well before the March 11, 2022 expiration):

	"Connection:": {
		"Protocol version:": "TLSv1.2",
		"Cipher suite:": "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
		"Key Exchange Group:": "x25519",
		"Signature Scheme:": "RSA-PSS-SHA256"
	},
	"Host slate.com:": {
		"HTTP Strict Transport Security:": "Disabled",
		"Public Key Pinning:": "Disabled"
	},
	"Certificate:": {
		"Issued To": {
			"Common Name (CN):": "slate.com",
			"Organization (O):": "<Not Available>",
			"Organizational Unit (OU):": "<Not Available>"
		},
		"Issued By": {
			"Common Name (CN):": "R3",
			"Organization (O):": "Let's Encrypt",
			"Organizational Unit (OU):": "<Not Available>"
		},
		"Period of Validity": {
			"Begins On:": "Sat, 11 Dec 2021 17:44:42 GMT",
			"Expires On:": "Fri, 11 Mar 2022 17:44:41 GMT"
		},
		"Fingerprints": {
			"SHA-256 Fingerprint:": "36:74:A8:DB:79:58:52:23:68:E7:06:87:8D:E9:51:97:DE:E6:7F:FC:69:90:5F:09:71:77:EE:3B:B4:7A:AF:8C",
			"SHA1 Fingerprint:": "1D:5A:91:D0:DE:1D:65:68:5E:D5:7B:9D:3B:DF:8F:07:5C:28:9F:7E"
		},
		"Transparency:": "<Not Available>"
	}
}```