DNS Report: sigmaaldrich.com

Generated: 2026-08-09T09:05:02-05:00

71/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
OKIPv6 (AAAA)10/101 IPv6 address(es) detected.
OKName server redundancy20/202 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/202 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5588 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
ERRORHTTP security headers0/350 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: sslfwd.questeldomains.com
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
ERRORHTTP response0/40No successful HTTP response.
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
185.123.52.199
AAAA
2a10:ec6:1:3:185:123:52:199
CNAME
MX
10 mxa-005f4802.gslb.pphosted.com.
10 mxb-005f4802.gslb.pphosted.com.
TXT
"z88l2xkshn69czfqgmsj9c6d50vqxf7c"
"_globalsign-domain-verification=6bP9qCGkjtv6lK1oUUk1GW_aLlwQ_rTa1zcOrqYRVM"
"_globalsign-domain-verification=49OWFydCiWRZ_S8Vdp-VLIQnUn-kkSxNGgyJMa_138"
"globalsign-domain-verification=9312CD11FDE849F8FCAA78D6BCF99770"
"globalsign-domain-verification=0B0F53EC216D660702AE4A9A63D72F74"
"globalsign-domain-verification=4b8078824d1dae9350e707486ba9ddcf"
"google-site-verification=KKFNroCgQrT3ZAFS7xbHZcXZsBhazWIB3vtKfOb6ouM"
"_validation-contactemail webadmin-devops@merckgroup.com"
"globalsign-domain-verification=2B6B5C4C6BBB5B5AAE6F089837878D86"
"globalsign-domain-verification=89F2BF086C30F3085DED32FBBB0991A3"
"google-site-verification=ZC0ucf6BRwGfNGBgaSbxM5KdOZnUrckPsTDLMlRoLMs"
"globalsign-domain-verification=D947A57FF568DBB84DFA710946DACB6A"
"_globalsign-domain-verification=i-eF5zY4dQy_1FzurxY-vB_ehho_ANc_RUBJNFcEiB"
"_svi1ncu4cumr6nw5k1znkab0qr691rv"
"globalsign-domain-verification=f18a5fb3e440e14833097a09ffff7640"
"_cy951hhy8mw82q69dkjgsax6jh39est"
"globalsign-domain-verification=BD227E1F68FD41038F4DAD17EF9A42BB"
"google-site-verification=O9x5KvwEgll7z5DhE7KwBzaHYHIwh2LjiLwfWZdO5kE"
"_cftn9x585yz9b3cb3i1ari4j6bh65sp"
"_wet0jp28oexnv3cnu099w2wr13wnkzq"
"globalsign-domain-verification=3263E2B0098AC99D0EAE1857F3721EC2"
"yandex-verification: fe89f4ca9b23bb00"
"MS=ms81241719"
"v=spf1 include:spf-005f4802.pphosted.com include:spf.protection.outlook.com include:_spf.esi-sa.com ~all"
"globalsign-domain-verification=0B6BE80F6F80EB75317351E4028F99FA"
"globalsign-domain-verification=FA2F4FC98028B53BED16786E870D92E7"
"_qeapzxdelh7xfhnlqcuywo7ygi7hifv"
"globalsign-domain-verification=B950605920163BED51E14CB3C71113BB"
"_globalsign-domain-verification=y-WbZfGH3iscpkgt-BmoaO4oBPfJ1RVC-VsPFSFLIe"
"google-site-verification=fOh8OkUz9z2sxgSRHJAX7-q6I5C-HiR3mcm3yj9uU0E"
"cmbglg0tbxlzvxgtmc7mr45jc7wxl9w4"
"globalsign-domain-verification=dface27f0430d7d08dfadc50dae06cbe"
"globalsign-domain-verification=c000b885bf4ac44d3c1ae3a95c241dde"
"globalsign-domain-verification=7E9C6273286D016BC739F611C23B14B3"
NS
ns01.brandshelter.com.
ns02.brandshelter.net.
SOA
ns01.brandshelter.com. tech.brandshelter.com. 2026080800 28800 600 1209600 300
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP