Dive into our data, search now!

We offer robust APIs and data services for domainers, data crawlers, security teams and many more.

384.5 M

Domains known to webXtrend

9.4 M

New domains in the last 30 days

62.8 M

Social media profiles detected

underfitting.com

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

underfitting.com serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

4,322 other domains share an IP address with it.

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. 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 4,322 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": "underfitting.com"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

Similar websites

Website Similarity
幸福村
91 %
河马客家
我的河马客家
88 %
Chu's Space
87 %
小不的笔记 | 时间之外的往事
The Hitchhiker's Guide to the Galaxy
85 %
我爱Gvim
我爱Gvim
85 %
nginx 运行中
85 %
Nginx 默认站点
85 %
Nginx 服务器运行中
85 %
Blog · Arno
84 %
Yongjiu的日志
84 %
小云像素 —— PxShell:终端、文件、AI 并排在同一屏的 SSH 客户端
远程运维不该在三个工具之间来回切换。PxShell 把 SSH 终端、SFTP 文件管理和一个能真正操作服务器的 AI 助手装进同一个窗口。
84 %
开发服务器已就绪
84 %
Teaker's Blog | show me the money
show me the money
83 %
HTTP Server on Fedora
83 %
唯都未央
83 %
$NEWDOMAINNAME
83 %
Happy Path | Fail
On .NET, testing, and more.
83 %
智学·治学 (AL·KM)
83 %
一个PHP开发者的博客
laravel,php,linux,laravel入门教程,前端,前端开发,web开发,web前端开发,用户体验,css,javascript,html
82 %
Leechg
82 %

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 Google Trust Services
Valid from 8/30/2026
Valid to 11/28/2026
Time until expiry 39 days

Last successful crawl

Title (not set)
Description (not set)
Content-Length 19,086 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
104.21.57.40 9/21/2024
172.67.189.29 9/21/2024
76.76.21.21 12/9/2023
IPv6 address Last updated
2606:4700:3030:0:0:0:ac43:bd1d 6/25/2026
2606:4700:3033:0:0:0:6815:3928 6/25/2026
2606:4700:3030:0:0:0:ac43:bd1d 9/21/2024
2606:4700:3037:0:0:0:6815:3928 9/21/2024
Mail server Priority Last updated
route1.mx.cloudflare.net 33 1/4/2024
route2.mx.cloudflare.net 53 1/4/2024
route3.mx.cloudflare.net 78 1/4/2024
Name server Last updated
rick.ns.cloudflare.com 12/9/2023
rosalie.ns.cloudflare.com 12/9/2023

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

104.21.57.40 1,085 domains · here since 9/16/2026
Domain On this IP since
zzzandzzz.locker 9/30/2026
zz555.com.br 9/13/2026
zyleisure.com 9/14/2026
zxspa.wiki 10/12/2026
zxc.co.id 9/23/2026
zunqeli.eu 9/18/2026
zso64.com 9/21/2026
zpirjt1.cn 10/12/2026
zonic244.com 10/11/2026
zilo2fanhca.top 9/23/2026
zigzag777jp.me 9/18/2026
zhangblogs.com 9/15/2026
and 1,072 more
172.67.189.29 1,085 domains · here since 9/16/2026
Domain On this IP since
zzzandzzz.locker 9/30/2026
zz555.com.br 9/13/2026
zyleisure.com 9/14/2026
zxspa.wiki 10/12/2026
zxc.co.id 9/23/2026
zunqeli.eu 9/18/2026
zso64.com 9/21/2026
zpirjt1.cn 10/12/2026
zonic244.com 10/11/2026
zilo2fanhca.top 9/23/2026
zigzag777jp.me 9/18/2026
zhangblogs.com 9/15/2026
and 1,072 more
2606:4700:3030::ac43:bd1d 1,076 domains · here since 9/16/2026
Domain On this IP since
zzzandzzz.locker 9/18/2026
zz555.com.br 9/13/2026
zyleisure.com 9/14/2026
zxspa.wiki 10/12/2026
zxc.co.id 9/23/2026
zunqeli.eu 9/18/2026
zso64.com 9/21/2026
zpirjt1.cn 10/12/2026
zonic244.com 10/11/2026
zilo2fanhca.top 9/23/2026
zigzag777jp.me 9/18/2026
zhangblogs.com 9/15/2026
and 1,063 more
2606:4700:3033::6815:3928 1,076 domains · here since 9/16/2026
Domain On this IP since
zzzandzzz.locker 9/18/2026
zz555.com.br 9/13/2026
zyleisure.com 9/14/2026
zxspa.wiki 10/12/2026
zxc.co.id 9/23/2026
zunqeli.eu 9/18/2026
zso64.com 9/21/2026
zpirjt1.cn 10/12/2026
zonic244.com 10/11/2026
zilo2fanhca.top 9/23/2026
zigzag777jp.me 9/18/2026
zhangblogs.com 9/15/2026
and 1,063 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.