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Total

DNS

Email

Security

Network

100

Availability

Domaindexcom.com

IPv42

IPv60

MX records1

StatusActive

Domain technical report

Dexcom Continuous Glucose Monitoring - The most accurate CGM system | Dexcom

dexcom.com

Dexcom Continuous Glucose Monitoring is simplifying diabetes management with a small device, accurate real-time glucose readings, and proven results.

Generated: 2026-08-12T10:33:06-05:00 · Cached result

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IPv42

IPv60

MX1

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

4 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

1 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

89 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

162.159.133.80
162.159.130.80

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 dexcom-com.mail.protection.outlook.com.

TXT

38 record(s)

"google-site-verification=zKwsrQPyoah9ESsY_6THkypDS6a54OjWtO1uVYfUVM0"
"jamf-site-verification=868lXj6uJSeqMOmF3yJHOg"
"docusign=1b3ac49d-ce6f-40b4-893d-e845bb814fc2"
"asv=4bf4a160833682807362a5fac9696010"
"docusign=9f9fbd05-11e2-4347-9ba1-023792e22326"
"facebook-domain-verification=rxc3vtm6bb6ciie2ovx9shs7jg5m0a"
"globalsign-domain-verification=8WxlGPveI9iiGVPRCKkSUgQ0b6q6962okQzZJ_hHp5"
"adobe-idp-site-verification=13c1df9cecdda5a4f1208043a555b25b058c6ab52b10d2382149fe8c1395d4ea"
"69e0e18b26194693a0d1f6614d299f62"
"miro-verification=59becafb633bacad0fd0aa98ea8f5e4212071206"
"apple-domain-verification=XoLdBFZa98uCv5vW"
"google-site-verification=ie8ubFLQbAXwekvxcE6vGLwF1WNPYHY4Be2RRztacXE"
"google-site-verification=lCW6tl3gQPXMUTeRFmb1JjYOG5ETWpt2k3YaYFGbP8M"
"google-site-verification=S3EMYqhECf_77GNxY8CEVDnZhcpW57dI8MIVxy6s7q4"
"google-site-verification=UnMclJ50HfFRp9_UEMc2Jia-pacfgjimOfv5cn6N21E"
"atlassian-domain-verification=b7AbOK1V+ljnX7oGHefuSV7HxH+yFNMwxKRYuWgd1p57/MDzd+pe2MZjWGiQqhV7"
"beautifulai-site-verification=0543f7e9-2a2a-478e-95a1-f3c0bd7c5be1"
"openai-domain-verification=dv-SxWIPiwmyhWV6V1VkWoTPXXU"
"shopify-verification-code=gCV57qc5ng9lxzhGIaQUFtfiDtOP8B"
"aNK0Q9d+bnQ1wWdLV2R4okiz2tFaWmOolbDvvVpJzCYbVUnMjBrUz/MpAa66SDVKRxFWK1D5RSpD/1HCvnGxwg=="
"ca3-597a6ddac1554496a32392e5f66f6141"
"google-site-verification=vjtlBXT1t22SZpgqdAVXFuuOaYvZ2ndfD69Y-HL2ruw"
"MS=ms24833701"
"atlassian-domain-verification=8OeeHjf7fw6xKjJ8U2nRkJjb6GCvJeZWqPW33g3AY1WV1HBIMMXgTfmLuZTkrSbv"
"google-site-verification=YpPpJk-g13eCN4Nrj1pY3IajjG9hRkuWqF3yWgG3cLw"
"smartsheet-site-validation=cnoSxtu5ZxGRRh7cl8oLY79XB4ZVA61o"
"google-site-verification=I4gvDeJUoJ1mp71ENKK7bSbnvU9pIWVxdeOJkAoA-5g"
"MS=ms52326489"
"figma-domain-verification=79c6c0d527c727ae1135e7182055efa2ad9f41fd53fb0337fe20fa0c3a176712-1737745127"
"google-site-verification=ccFNhpuM4fAyn5uNr8K-rLk0vFOJO4DoWMIz-7c70s0"
"O-dw5_qJ66NE9daj2VoaWh18tzw"
"onetrust-domain-verification=992bdfdb6ff6403484fbbb4563a91c61"
"yq5CJDLJHBR6NZUYRXlan23iBDDTxuslgEeQwfeIHeo="
"google-site-verification=Onsc6TWkfX23zcJOOcJPnDpaJf_fzL5ziUh9iH_7ILM"
"docusign=3fceab14-b498-4de0-9e01-b330448b5682"
"v=spf1 mx include:spf.protection.outlook.com include:_spf.salesforce.com include:_u.dexcom.com._spf.smart.ondmarc.com ip4:192.254.121.129 ip4:13.210.152.254 ip4:163.53.23.2 ip4:163.53.23.75 ip4:23.227.61.129/31 ip4:54.153.190.82 ip4:167.89.36.126" " ip4:3.225.140.251 ip4:168.245.25.245 ip4:158.101.215.255 ip4:168.138.106.117 ip4:139.87.106.250 ip4:139.87.105.228 ip4:193.123.67.188 ip4:103.75.172.20 ip4:64.39.96.0/20 ip4:64.41.200.0/24 ip4:148.163.158.195 ip4:148.163.156.198 ip4:154.59.121.40" " ip4:208.74.204.0/22 ip4:46.19.168.0/23 ip4:103.216.98.0/24 ip4:165.193.18.0/24 ip4:209.112.104.0/22 ip4:64.207.216.0/22 ip4:162.248.184.0/22 ~all"
"postman-domain-verification=18652b465cd1011958196e9a94de5e2a0bb047e62d7ee6c2fbabbe21c2fc10bed4721d39b8fd78761e7f642f43c951636b81b5d86b9ddad769255f8d61690238"
"traction-guest=956a3563-68a3-471b-bfe2-3f80347484f4"

NS

4 record(s)

ns-cloud-a1.googledomains.com.
ns-cloud-a2.googledomains.com.
ns-cloud-a3.googledomains.com.
ns-cloud-a4.googledomains.com.

SOA

1 record(s)

ns-cloud-a1.googledomains.com. cloud-dns-hostmaster.google.com. 38 21600 3600 259200 300

CAA

0 record(s)

—

Not configured

DS

0 record(s)

—

Not configured

DNSKEY

2 record(s)

256 3 8 AwEAAfOrjXfwbJcMTWIAm6cVFXsRDtipIN3P5qXHjiz2OyYsMEfxAQ5h YGIoNei5SP0onBt0Jr6Sbg+tsV3fc30/2FTrwmgjhbqudWL441bLteVL ApvlZoLzdBtTrg172p3k4QhXfzVHqcOcBYB0kpzbLUQOi6zscaZyIDfH oAYqZDjZ
257 3 8 AwEAAbYCL58Ctw+xE4mUoM39z7134WfPX1RgJ7W6PtqUbFq9x9MScv8K 0O1rdcP2E6WkZlK/EzQXyu02aOYGque8yMYAACGyPYWNantKflQ/EC8u /qut3rUKP9fnbV9i6QWcngGrfuseZgijyhEhsRUoJe8ujB5Qiiq0C79d boD9KzWWmy04d3L5bcqisaXawon0vDevItgum0vDskerraZB44rYzivH F5d5gZrFBen5QvM3RL+hr73nH/3xdHBRzX1OrR1pECjJBBkR3DU4kGLf +AJ34qHNDEGPu/wTNHEAiBSRG+/KELEPSyzGGeeaefg9VIoNFRmU+/dC DafnaDP0gyU=

RRSIG

2 record(s)

SOA 8 2 21600 20260901033628 20260810033628 21190 dexcom.com. 3eNWzynO0netbRdG/Ldof/FdYdJlnKr4CIthQqwggty8ua/BEuRS4pxF TLauWKozb9WltxoH8KZjNPDJ2nsxSvxOP80hdWkxZbV5WzEfaWSvBwHn H8vNuiq+Z0pcNmsm6t+5Y7Wsx5MKN58eo73PdgWKrS4OZuTerXyguRh0 HA8=
NS 8 2 21600 20260901033628 20260810033628 21190 dexcom.com. q1b8LaANF546jwYYLd7qmcCxHtj3zu/qmRL1PoPZ9w6mCyhSNxRWM2hm vK42K7DWfVz2m7b2fiY6Bqic7QRrh1dfs7eUI7LUIBtMY5NIlOTA5amG +pdsfePPE12oXV+P2TVb6glL6Xz86YlkINGHf63CZIlf3XUvaw+ptjof pgw=

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 mx include:spf.protection.outlook.com include:_spf.salesforce.com include:_u.dexcom.com._spf.smart.ondmarc.com ip4:192.254.121.129 ip4:13.210.152.254 ip4:163.53.23.2 ip4:163.53.23.75 ip4:23.227.61.129/31 ip4:54.153.190.82 ip4:167.89.36.126 ip4:3.225.140.251 ip4:168.245.25.245 ip4:158.101.215.255 ip4:168.138.106.117 ip4:139.87.106.250 ip4:139.87.105.228 ip4:193.123.67.188 ip4:103.75.172.20 ip4:64.39.96.0/20 ip4:64.41.200.0/24 ip4:148.163.158.195 ip4:148.163.156.198 ip4:154.59.121.40 ip4:208.74.204.0/22 ip4:46.19.168.0/23 ip4:103.216.98.0/24 ip4:165.193.18.0/24 ip4:209.112.104.0/22 ip4:64.207.216.0/22 ip4:162.248.184.0/22 ~all

DMARC

Configured

v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:a92318d4@inbox.us.redsift.cloud,mailto:dmarc.compliance@dexcom.com; ruf=mailto:a92318d4@inbox.us.redsift.cloud,mailto:dmarc.compliance@dexcom.com

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQClmC6/LHhkmX122tZtLAQzDJjEsfRdRL49FjHZmmMEqwyBq1t4pIZfS2hVhgPMQUj+Jupupy5p0qZ6CD7DJOH40kbvNqCVoiA62eHWqiwoUzzC6+2pxZWt2VJPdur+yUDTJXPAO6fpzq/xKAnaW/wS0WUy5PmxqPWwVmR3IP5LKQIDAQAB; n=1024,1467222787,1483033987

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Dexcom Continuous Glucose Monitoring - The most accurate CGM system | Dexcom

Description

Dexcom Continuous Glucose Monitoring is simplifying diabetes management with a small device, accurate real-time glucose readings, and proven results.

Final URL

https://www.dexcom.com/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.dexcom.com/

Version

Server

cloudflare

X-Powered-By

Next.js

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

dexcom.com

Valid from

2026-08-11T20:20:54-05:00

Valid until

2026-11-09T20:20:31-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

2 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

162.159.130.80, 162.159.133.80

41,68 ms

Cloudflare

1.1.1.1

162.159.130.80, 162.159.133.80

29,29 ms

Quad9

9.9.9.9

162.159.130.80, 162.159.133.80

143,96 ms

OpenDNS

208.67.222.222

162.159.130.80, 162.159.133.80

76,77 ms

AdGuard

94.140.14.14

162.159.130.80, 162.159.133.80

99,16 ms

IP, geolocation and ASNAssociated network information

162.159.133.80

No data

success

country

region

city

asn

organization

isp

162.159.130.80

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.216.212

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

dexcom-com.mail.protection.outlook.com

Port 25: Closed/unreachable - 35.8 ms - 
Port 465: Closed/unreachable - 4020.9 ms - 
Port 587: Closed/unreachable - 4019.9 ms -

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