fileformat.com

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

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

Its IP address is shared with 84 other domains.

The most recent crawl returned the page title “An Open-source File Format API Guide For Developers” and 28,845 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	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.	yes	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	85	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": "fileformat.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	10/9/2026
Valid to	1/7/2027
Time until expiry	74 days

Last successful crawl

Title	An Open-source File Format API Guide For Developers
Description	Using open-source APIs and libraries, learn to create, edit, convert, and manipulate PDF, 3D, CAD, Spreadsheet, image, & other file formats with examples.
Content-Length	28,845 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
198.17.118.22	8/10/2026
18.172.112.125	7/14/2026
18.172.112.128	7/14/2026
18.172.112.73	7/14/2026
18.172.112.77	7/14/2026

Mail server	Priority	First seen
exchange.aspose.com	10	12/31/2023
exchange2.aspose.com	20	12/31/2023

Name server	First seen
ns-1464.awsdns-55.org	12/15/2023
ns-1748.awsdns-26.co.uk	12/15/2023
ns-56.awsdns-07.com	12/15/2023
ns-815.awsdns-37.net	12/15/2023

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

198.17.118.22 85 domains · here since 9/19/2026

Domain	On this IP since
yardize.com	9/12/2026
wordize.com	9/13/2026
wordize.app	9/14/2026
wakefieldstud.com	9/19/2026
vintnerize.com	9/19/2026
trillionize.com	10/2/2026
teachize.com	9/17/2026
sui.cruises	9/21/2026
southpacificresort.com.au	9/14/2026
smallize.com	9/12/2026
smallize.cloud	9/13/2026
smallize.app	9/17/2026
and 72 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!