Host Profile

substackcdn.com

fqdn
13
IPs
8
Tech
1
Certs
0
Cookies
31
Headers
8
MIME
9
Incoming
0
Outgoing
First Seen
2022-04-27 15:39:05
Last Seen
2026-08-26 01:56:02
Times Seen
178
Registered
2022-04-12 00:00:00

IP Addresses

13
IPASNAS NameCountryFirst SeenLast SeenSeen
65.9.46.84unknownunknown
US US
2026-08-24 00:56:182026-08-26 01:56:0249
65.9.46.88unknownunknown
US US
2026-08-24 00:04:492026-08-26 01:43:4143
65.9.46.122unknownunknown
US US
2026-08-24 01:49:032026-08-26 01:38:0934
52.84.50.89AS16509AMAZON-02
US US
2026-08-26 01:21:002026-08-26 01:21:001
52.84.50.62AS16509AMAZON-02
US US
2026-08-26 01:19:112026-08-26 01:19:111
65.9.46.126unknownunknown
US US
2026-08-24 00:03:382026-08-26 01:08:3140
18.64.211.30unknownunknown
US US
2026-08-24 14:51:092026-08-25 12:29:252
13.249.8.40AS16509AMAZON-02
US US
2026-08-25 07:29:502026-08-25 07:29:501
13.249.8.127AS16509AMAZON-02
US US
2026-08-25 06:49:532026-08-25 06:49:531
18.64.211.57unknownunknown
US US
2026-08-24 12:24:022026-08-24 12:24:021
65.9.62.70AS16509AMAZON-02
US US
2026-08-24 05:13:472026-08-24 06:56:062
13.249.8.95AS16509AMAZON-02
US US
2026-08-24 05:42:422026-08-24 06:41:062
13.249.8.45AS16509AMAZON-02
US US
2026-08-24 05:33:252026-08-24 05:33:251

Technologies

8
Substack.svg
Substack (Blogs)

Substack is an American online platform that provides publishing, payment, analytics, and design infrastructure to support subscription newsletters.

https://substack.com/
First2026-08-24 00:04:49
Last2026-08-26 01:56:02
Seen98
Amazon Cloudfront.svg
Amazon CloudFront (CDN)

Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.

https://aws.amazon.com/cloudfront/
First2026-08-24 00:03:38
Last2026-08-26 01:56:02
Seen178
Amazon Web Services.svg
Amazon Web Services (PaaS)

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

https://aws.amazon.com/
First2026-08-24 00:03:38
Last2026-08-26 01:56:02
Seen178
caddy.svg
Caddy (Web servers)
https://caddyserver.com
First2026-08-24 00:04:49
Last2026-08-26 01:56:02
Seen98
Express.svg
Express (Web frameworks, Web servers)

Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.

https://expressjs.com
First2026-08-24 00:03:38
Last2026-08-26 01:56:02
Seen178
HSTS (Security)

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

https://www.rfc-editor.org/rfc/rfc6797#section-6.1
First2026-08-24 00:04:49
Last2026-08-26 01:56:02
Seen98
Node.js.svg
Node.js (Programming languages)

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.

https://nodejs.org
First2026-08-24 00:03:38
Last2026-08-26 01:56:02
Seen178
Amazon S3.svg
Amazon S3 (CDN)

Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.

https://aws.amazon.com/s3/
First2026-08-24 00:03:38
Last2026-08-25 23:43:21
Seen66

Certificates

1
Amazon
714496308710fddec5b230f9e6265ea9403445d8dd92678f703054ef59194cf5
Subject CNsubstackcdn.com
Subject Orgunknown
Issuer OrgAmazon
Valid From2025-12-14 00:00:00
Valid To2027-01-12 23:59:59

Cookies

0
No cookie observations available.

HTTP Headers

31
x-service x98
vary x178
via x178
x-amz-cf-id x178
x-amz-cf-pop x178
x-cache x178
x-cluster x98
x-deploy x98
x-firefox-spdy x178
x-powered-by x178
x-served-by x98
accept-ranges x160
cache-control x178
content-encoding x160
content-type x178
date x178
etag x178
last-modified x161
server x178
strict-transport-security x98
alt-svc x73
age x83
x-amz-server-side-encryption x65
content-disposition x83
x-request-id x83
content-length x83
content-security-policy x83
x-amz-expiration x65
access-control-allow-origin x65
x-amz-error-message x1
x-amz-error-code x1

MIME Types

8
image/x-icon
Seen 95 times
text/css
Seen 65 times
image/png
Seen 81 times
image/jpeg
Seen 24 times
application/javascript
Seen 65 times
image/webp
Seen 4 times
image/svg+xml
Seen 3 times
text/html
Seen 1 times

Relations

Hosts observed redirecting, loading, calling, or embedding one another.

9
SourceRelationTargetFirst SeenLast SeenSeen
substack.comredirects tosubstackcdn.com2026-08-24 00:04:492026-08-26 01:56:0295
substack.comloads fromsubstackcdn.com2026-08-24 00:04:492026-08-26 01:56:02160
carolinehagood.substack.comloads fromsubstackcdn.com2026-08-25 23:43:212026-08-25 23:43:211
lists.postalot.apploads fromsubstackcdn.com2026-08-25 05:21:442026-08-25 21:37:1717
marissameyer.substack.comloads fromsubstackcdn.com2026-08-25 20:32:352026-08-25 20:32:351
www.dropsitenews.comloads fromsubstackcdn.com2026-08-24 04:27:342026-08-25 11:54:2158
www.timerichclub.comloads fromsubstackcdn.com2026-08-25 07:25:542026-08-25 07:25:541
www.acornsweetleaf.comloads fromsubstackcdn.com2026-08-24 13:54:572026-08-24 13:54:571
www.golfbusinessreview.comloads fromsubstackcdn.com2026-08-24 04:03:152026-08-24 04:03:151