bootstrap.build

bootstrap.build serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

One other domain shares an IP address with it.

The most recent crawl returned the page title “Free Bootstrap 5 Theme Builder | bootstrap.build” and 64,325 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.build	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	yes	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	yes	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	only IPv4	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	1	Number of domains with the same IP(s).

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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.

Last SSL certificate

Issuer	Let's Encrypt
Valid from	8/21/2026
Valid to	11/19/2026
Time until expiry	36 days

Last successful crawl

Title	Free Bootstrap 5 Theme Builder \| bootstrap.build
Description	Design a custom Bootstrap 5 theme in your browser. Edit Sass variables with a live preview, then export clean Sass or CSS. Free and open source.
Content-Length	64,325 bytes

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

DNS history

IPv4 address	Last updated
51.81.82.60	12/14/2023

Mail server	Priority	Last updated
aspmx1.migadu.com	10	12/30/2023
aspmx2.migadu.com	20	12/30/2023

Name server	Last updated
emily.ns.cloudflare.com	12/14/2023
fonzie.ns.cloudflare.com	12/14/2023

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

51.81.82.60 1 domain · here since 9/18/2026

Domain	On this IP since
No other domains on this address.

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!