stack-spy.com

Get an email when its DNS, website or certificate changes.

stack-spy.com serves a website of its own. It answers on both IPv4 and IPv6, with a valid TLS certificate.

Its busiest IP address is shared with 812 other domains.

The most recent crawl returned the page title “Stack Spy — Free tech stack detector for any website” and 33,854 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.com	Statistics for all domains we know under this TLD.
Has website	yes	A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record	no	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	no	The domain redirects to https.
Redirect to www.	no	The domain redirects to www.domain.
Only with www.	no	The domain can only be reached with the subdomain "www".
Only DNS, no website	no	There are no A or AAAA records in DNS.
IP-Address	Both	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	0	Number of domains that redirect to this domain.
Reverse IP	3,222	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "stack-spy.com"}'

Create a free account Read the API docs

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Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Let's Encrypt
Valid from	9/28/2026
Valid to	12/27/2026
Time until expiry	62 days

Last successful crawl

Title	Stack Spy — Free tech stack detector for any website
Description	Discover technologies behind any site: frameworks, analytics, hosting, and more. Chrome extension + shareable /companies/ pages.
Content-Length	33,854 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	First seen
104.21.40.7	4/25/2026
172.67.173.118	4/25/2026
188.114.96.0	4/18/2026
188.114.97.0	4/18/2026
104.21.40.7	4/12/2026

IPv6 address	First seen
2606:4700:3035:0:0:0:ac43:ad76	7/5/2026
2606:4700:3037:0:0:0:6815:2807	7/5/2026
2606:4700:3030:0:0:0:6815:2807	4/18/2026
2606:4700:3036:0:0:0:ac43:ad76	4/18/2026
2a06:98c1:3120:0:0:0:0:0	4/12/2026

Name server	First seen
melany.ns.cloudflare.com	4/5/2026
piotr.ns.cloudflare.com	4/5/2026

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

104.21.40.7 813 domains · here since 10/18/2026

Domain	On this IP since
zzlcm.com	9/23/2026
zylavino.blog	9/22/2026
zoo-angelsport.de	9/27/2026
zestoove.click	9/16/2026
zensreviews.com	9/16/2026
zcienikamedical.com	10/21/2026
zazeved.shop	9/20/2026
z4k4pw.com	9/18/2026
yunfanjichang.sbs	10/8/2026
yukselisyolupf.com	9/23/2026
your-pay-day.com	9/13/2026
york.io	9/18/2026
and 800 more

172.67.173.118 813 domains · here since 10/18/2026

Domain	On this IP since
zzlcm.com	9/23/2026
zylavino.blog	9/22/2026
zoo-angelsport.de	9/27/2026
zestoove.click	9/16/2026
zensreviews.com	9/16/2026
zcienikamedical.com	10/21/2026
zazeved.shop	9/20/2026
z4k4pw.com	9/18/2026
yunfanjichang.sbs	10/8/2026
yukselisyolupf.com	9/23/2026
your-pay-day.com	9/13/2026
york.io	9/18/2026
and 800 more

2606:4700:3035::ac43:ad76 798 domains · here since 10/18/2026

Domain	On this IP since
zzlcm.com	9/23/2026
zylavino.blog	9/22/2026
zoo-angelsport.de	9/27/2026
zestoove.click	9/16/2026
zensreviews.com	9/16/2026
zcienikamedical.com	10/21/2026
zazeved.shop	9/20/2026
z4k4pw.com	9/18/2026
yunfanjichang.sbs	10/8/2026
yukselisyolupf.com	9/23/2026
your-pay-day.com	9/13/2026
york.io	9/18/2026
and 785 more

2606:4700:3037::6815:2807 798 domains · here since 10/18/2026

Domain	On this IP since
zzlcm.com	9/23/2026
zylavino.blog	9/22/2026
zoo-angelsport.de	9/27/2026
zestoove.click	9/16/2026
zensreviews.com	9/16/2026
zcienikamedical.com	10/21/2026
zazeved.shop	9/20/2026
z4k4pw.com	9/18/2026
yunfanjichang.sbs	10/8/2026
yukselisyolupf.com	9/23/2026
your-pay-day.com	9/13/2026
york.io	9/18/2026
and 785 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

Dive into our data, search now!