# Domain Details and Reverse Lookups

Open one domain's full record from Domain Search, with WHOIS and DNS history, certificate, website and name data, its subdomains and related domains, and find other domains that share its details.

Source: https://docs.deepinfo.com/guide/dsi/domain-details/

Last updated: 2026-09-26

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Every domain in Domain Search has a full record: registration (WHOIS) with its history, DNS with its history,
the certificate, website data, facts about the name itself, and lists of related domains. You can read it in a
drawer next to your results, or open it in a page tab of its own.

## Before You Start

- **Package:** Deep Search & Insights (DSI), with Domain Search and domain details included.
- **Role:** Admin or Member.

## Where to Find It

**Sidebar:** **DEEP SEARCH & INSIGHTS** › **DOMAIN SEARCH**, then a result · [https://platform.deepinfo.com/app/dsi/domain-search](https://platform.deepinfo.com/app/dsi/domain-search)

- **Drawer:** select a row in the Domain Search results.
- **Page tab:** select **OPEN IN NEW TAB** at the top of the drawer, or type a domain name in the search box and
  pick **OPEN IN NEW TAB** from the suggestions. The tab is named after the domain.

## The Drawer

![The domain drawer on the WHOIS tab, with the summary at the top and the tab icons on the left.](/img/guide/dsi/domain-details-01.png)

1. **OPEN IN NEW TAB** at the top.
2. **Summary:** **IP ADDRESSES**, **HTTP STATUS**, **DOMAIN EXPIRE** and **SSL CERTIFICATE**.
3. **Tabs** (icons; the open tab's name is its heading): **WHOIS**, **DNS**, **SSL**, **WEBSITE INFO**,
   **DOMAIN INFO**, **SUBDOMAINS**, **ASSOCIATED DOMAINS** and **OTHER TLDS**.

**SUBDOMAINS** loads as soon as you open it: the number of subdomains, **EXPORT**, and a list with **DOMAIN**
and **IP ADDRESS**.

## The Domain's Page Tab

![A domain's page tab with the summary at the top and the section menu.](/img/guide/dsi/domain-details-02.png)

**At the top:**

- The domain name with an external-link icon, and **EXPORT AS JSON** (it does not download anything; see
  [Good to know](#good-to-know)).
- **IP ADDRESS** (with **+n** when there are more), **DOMAIN EXPIRE ON**, **SSL CERTIFICATE** and **HTTP STATUS**.
- A section menu to jump down the page: **WHOIS**, **DNS**, **SSL**, **WEBSITE INFO**, **DOMAIN INFO**,
  **SUBDOMAINS**, **ASSOCIATED DOMAINS** and **OTHER TLDS**.

**Sections:**

| Section | What it shows |
|---|---|
| **Whois** | **CREATE DATE**, **EXPIRATION DATE**, **UPDATED DATE**, **NAME SERVER**, **DOMAIN STATUS**, **REGISTRAR**, and the **Registrant** block (**EMAIL**, **NAME**, **ORGANIZATION**, address, **PHONE:**). **SHOW HISTORICAL WHOIS RECORDS** |
| **DNS** | **A**, **AAAA**, **NS**, **MX** and **TXT Records**. **SHOW HISTORICAL DNS RECORDS** |
| **SSL** | **Details**, **Fingerprint**, **Signature** and **Extensions** |
| **Website Info** | **Http Status** (**FIRST STATUS CODE**, **FINAL STATUS CODE**, **REDIRECTION**, **FINAL URL**, **FINAL FQDN**, **FINAL DOMAIN**) and **Http Headers** |
| **Domain Info** | **DOMAIN NAME**, **EXTENSION**, **EXTENSION TYPE**, **NAME (SLD)**, **NAME (LATINIZED)**, **LENGTH**, **KEYWORDS**, **KEYWORD COUNT**, **KEYWORD LANGUAGE**, and whether the name contains letters, numbers, hyphens or confusable characters |
| **Subdomain**, **Associated Domains**, **Other TLDs** | Each starts closed; select **SHOW THE LIST** to load it |

A field shows **-** when the record has no value for it.

## See Older WHOIS and DNS Records

1. In the **Whois** section, select **SHOW HISTORICAL WHOIS RECORDS**. In **DNS**, select
   **SHOW HISTORICAL DNS RECORDS**.
2. A drawer opens, titled **Historical Whois Records** (or **Historical DNS Records**), with the number of
   records found and their dates.

![The Historical Whois Records drawer with the number of records found and their dates.](/img/guide/dsi/domain-details-03.png)

## Find Domains That Share a Detail (Reverse Lookups)

Some values in the record, such as a name server, are clickable. Hover over one: a tooltip asks whether you
would like to see what other domains are owned by it, with **SEE OTHERS**. Select **SEE OTHERS** to list the
domains that share that IP address, name server, mail server or registrant e-mail.

![The SEE OTHERS tooltip on a name server.](/img/guide/dsi/domain-details-04.png)

## Good to Know

- **EXPORT AS JSON** at the top of the page tab does not download anything. To get a domain's record as
  data, use [Domain Detail](/reference/discovery/domain-detail/) in the API.
- The external-link icon opens the domain itself in your browser.

## Do This With the API

- The record: [Domain Detail](/reference/discovery/domain-detail/)
- History: [WHOIS History](/reference/lookup/whois-history/), [DNS History](/reference/lookup/dns-history/)
- Related domains: [Subdomain Finder](/reference/discovery/subdomain-finder/),
  [Associated Domain Finder](/reference/discovery/associated-domain-finder/), [All TLDs](/reference/discovery/all-tlds/)
- Reverse lookups: [Reverse IP](/reference/discovery/reverse-ip/), [Reverse NS](/reference/discovery/reverse-ns/),
  [Reverse MX](/reference/discovery/reverse-mx/), [Reverse WHOIS Email](/reference/discovery/reverse-whois-email/)
- API only: [Same-Time Registered Domain Finder](/reference/discovery/same-time-registered-domain-finder/)