grc.com website report
Steve Gibson's and Gibson Research Corporation's Web homepage.
Grc was registered 34 years 10 months ago, is ranked #12,005 worldwide (top 0.35%), has an estimated value of $254,963. It may earn around $15,475 per month from advertising.
Technology & Computing English
Last updated
Key facts about grc.com
- Domain
- grc.com
- Website name
- Home of Gibson Research Corporation
- Category
- Technology & Computing
- Estimated worth
- $254,963
- Global rank
- #12,005 (top 0.35% of 3.5M ranked sites)
- Monthly visitors (est.)
- 162K · 8.1M page views
- Registered
- December 17, 1991 (34 years 10 months ago)
- Expires
- December 16, 2033
- Registrar
- Tucows Domains Inc.
- Server location
United States- Network
- Level 3 Communications AS3356
- Email provider
- Self-hosted / other (grc.com)
- Language
- English
- Data updated
Estimated traffic & revenue
| Page views | Visitors | Ad revenue | |
|---|---|---|---|
| Daily | 270,294 | 5,406 | $516 |
| Monthly | 8,108,808 | 162,176 | $15,475 |
| Yearly | 97,305,696 | 1,946,112 | $185,700 |
Modelled from the global rank — not measured analytics. Use them to compare sites, not as exact figures.
Global rank history
Monthly values
| Month | Global rank |
|---|---|
| 2026-06 | #24,191,273 |
| 2026-07 | #12,005 |
Source: Rankeez (Tranco, Majestic, DomCop, Cisco Umbrella).
How we estimate grc.com's value
The estimate is the higher of two independent approaches, both computed automatically from public data.
- Traffic value: $254,963Driven by the global rank #12,005 (≈8.1M page views / month) plus a capped age bonus.
- Activity value: $795Domain age plus observable signs of an active, professionally run website.
Activity signals found
| Domain age (34 years 10 months) | $400 |
| Active website with metadata | +$150 |
| Email authentication (SPF) | +$50 |
| Security headers (65/100) | +$195 |
Revenue, sales or private analytics are not public and are not included. This is not an appraisal or a sale price.
On-page SEO
| Title | Home of Gibson Research Corporation 35 chars |
|---|---|
| Meta description | Steve Gibson's and Gibson Research Corporation's Web homepage. 62 chars |
| Meta keywords | hard drive data recovery, internet security, shieldsup, shieldsup!, shields up, steve gibson, spinrite |
| Language | English |
| Response time | 0.73 s Fast |
Homepage structure
No H1 heading found in the server HTML.
Technology & infrastructure
| CDN / proxy | None detected |
|---|---|
| Web server | GRC/IIS Hybrid Application Webserver |
| Platform / language | Not disclosed |
| DNS provider | Unknown |
| Email provider | Self-hosted / other (grc.com) |
| SPF record | v=spf1 ip4:4.79.142.192/28 a:client.grc.com a:grc.com -all |
| IPv6 (AAAA) | No |
| CAA record | Yes |
Services verified in DNS
Google Search Console
Detected from TXT verification and SPF records published by the domain owner.
Domain name
| Extension | .com — the most widely used generic extension, originally for commercial sites |
|---|---|
| Name length | 3 characters Short |
| Hyphens / digits | No hyphen · no digits |
Security headers
Homepage answered HTTP 200 at https://www.grc.com/intro.htm after 1 redirect · checked Nov 4, 2026
- HTTPSThe homepage is served over an encrypted HTTPS connection.
- HTTP → HTTPS redirectVisitors typing http:// are redirected to the secure version.
- Strict-Transport-Security (HSTS)max-age 365 days, preload.
- Content-Security-PolicyNot set: no restriction on which scripts may run.
- Clickjacking protectionX-Frame-Options: SAMEORIGIN prevents the site from being framed by others.
- X-Content-Type-OptionsNot set to nosniff.
- Referrer-PolicyNot set (browsers default to strict-origin-when-cross-origin).
- Permissions-PolicyNot set: browser features are not explicitly restricted.
- Cookie flags2 cookie(s) set; tpag (no Secure/HttpOnly/SameSite), ppag (no Secure/HttpOnly/SameSite).
- Software version disclosureNo software version numbers disclosed in headers.
Raw HTTP response headers
HTTP/1.1 200 OK Content-Type: text/html; charset=utf-8 Content-Encoding: gzip Expires: Mon, 01 Jan 1990 00:00:00 GMT Vary: Accept-Encoding Access-Control-Allow-Origin: * X-Frame-Options: SAMEORIGIN Strict-Transport-Security: max-age=31536000; preload P3P: CP="NOI DSP COR NID NOR" Set-Cookie: tpag=u5izvjvvmo1gx; path=/, ppag=u5izvjvvmo1gx; path=/; expires=Mon, 01-Jan-2046 00:00:00 GMT Server: GRC/IIS Hybrid Application Webserver Date: Wed, 04 Nov 2026 01:12:22 GMT Connection: close Content-Length: 3961
Hosting
| IP address | 4.79.142.200 |
|---|---|
| Location | |
| Network (ISP) | Level 3 Communications |
| Autonomous system | AS3356 Level 3 Communications, Inc. |
| Server software | GRC/IIS Hybrid Application Webserver |
Nameservers
| Host | IP | Country |
|---|---|---|
| ns4.customer.level3.net | 209.244.4.53 | |
| ns6.customer.level3.net | 209.244.4.85 |
Domain registration (WHOIS)
| Registrar | Tucows Domains Inc. |
|---|---|
| Created | December 17, 1991 34 years 10 months ago |
| Updated | November 25, 2024 |
| Expires | December 16, 2033 in 2,597 days |
| Status | clientTransferProhibitedclientUpdateProhibited |
Raw WHOIS record
Domain Name: GRC.COM Registry Domain ID: 166642_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.tucows.com Registrar URL: http://www.tucows.com Updated Date: 2024-11-25T22:21:23Z Creation Date: 1991-12-17T05:00:00Z Registry Expiry Date: 2033-12-16T05:00:00Z Registrar: Tucows Domains Inc. Registrar IANA ID: 69 Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +1.4165350123 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited Name Server: NS4.CUSTOMER.LEVEL3.NET Name Server: NS6.CUSTOMER.LEVEL3.NET DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/ >>> Last update of whois database: 2026-07-12T16:02:46Z <<< For more information on Whois status codes, please visit https://icann.org/epp NOTICE: The expiration date displayed in this record is the date the registrar's sponsorship of the domain name registration in the registry is currently set to expire. This date does not necessarily reflect the expiration date of the domain name registrant's agreement with the sponsoring registrar. Users may consult the sponsoring registrar's Whois database to view the registrar's reported date of expiration for this registration. TERMS OF USE: You are not authorized to access or query our Whois database through the use of electronic processes that are high-volume and automated except as reasonably necessary to register domain names or modify existing registrations; the Data in VeriSign Global Registry Services' ("VeriSign") Whois database is provided by VeriSign for information purposes only, and to assist persons in obtaining information about or related to a domain name registration record. VeriSign does not guarantee its accuracy. By submitting a Whois query, you agree to abide by the following terms of use: You agree that you may use this Data only for lawful purposes and that under no circumstances will you use this Data to: (1) allow, enable, or otherwise support the transmission of mass unsolicited, commercial advertising or solicitations via e-mail, telephone, or facsimile; or (2) enable high volume, automated, electronic processes that apply to VeriSign (or its computer systems). The compilation, repackaging, dissemination or other use of this Data is expressly prohibited without the prior written consent of VeriSign. You agree not to use electronic processes that are automated and high-volume to access or query the Whois database except as reasonably necessary to register domain names or modify existing registrations. VeriSign reserves the right to restrict your access to the Whois database in its sole discretion to ensure operational stability. VeriSign may restrict or terminate your access to the Whois database for failure to abide by these terms of use. VeriSign reserves the right to modify these terms at any time. The Registry database contains ONLY .COM, .NET, .EDU domains and Registrars.
DNS records
| Type | Host | Value | TTL |
|---|---|---|---|
| A | grc.com | ip: 4.79.142.200 | 28794 |
| NS | grc.com | target: ns4.customer.level3.net | 28800 |
| NS | grc.com | target: ns6.customer.level3.net | 28800 |
| SOA | grc.com | mname: grc.com rname: dns2005.grc.com serial: 2026042500 refresh: 14400 retry: 300 expire: 5184000 minimum-ttl: 14400 | 10087 |
| MX | grc.com | pri: 10 target: grc.com | 28800 |
| TXT | grc.com | txt: v=spf1 ip4:4.79.142.192/28 a:client.grc.com a:grc.com -all | 28800 |
| TXT | grc.com | txt: _e9izydias4fdktb7grdz8lx129rf0kz | 28800 |
| TXT | grc.com | txt: _bpovimyxhv2xbvowiwnvlkhz27b4z4f | 28800 |
| TXT | grc.com | txt: 7pdq8vl28psslbzzx8g9s3pbwjvksk24 | 28800 |
| TXT | grc.com | txt: google-site-verification=lTHvpojcfPIYXGkOqbku5TcOkpo52Exo-qWuQJi5bpw | 28800 |
| CAA | grc.com | flags: 0 tag: issue value: digicert.com | 28800 |
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grc.com compared with similar websites
| Website | Global rank | Est. worth | Registered | Hosted in |
|---|---|---|---|---|
| grc.com | #12,005 | $255K | 1991 | |
| alxgbsn.co.uk | #1,572,806 | $788 | — | |
| gibsonfoundation.org | #1,806,287 | $946 | 2006 | |
| cognizant.com | #12,008 | $255K | 1995 | |
| page.tl | #12,014 | $255K | 2006 | |
| cyberchimps.com | #12,016 | $255K | 2010 | |
| balena.io | #12,019 | $254K | 2017 |
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Questions about grc.com
When was grc.com registered?
Grc.com was registered on December 17, 1991, making it 34 years 10 months old.
Who is the domain registrar for grc.com?
Grc.com is registered through Tucows Domains Inc..
Where is grc.com hosted?
Grc.com's server (IP 4.79.142.200) is located in United States.
How much is grc.com worth?
We estimate grc.com is worth $254,963. This is an automated estimate based on the site's global traffic rank, domain age and observable activity signals (professional email, business services, security, CDN) — not a professional appraisal or a real sale price.
How much traffic does grc.com get?
Based on its rank, grc.com receives roughly 162K unique visitors and 8.1M page views per month. These figures are modelled from the rank, not measured.
What is grc.com's global rank?
Grc.com has an estimated global rank of 12,005, sourced from Rankeez.com, which aggregates the Tranco, Majestic, DomCop and Cisco Umbrella rankings. Its rank has improved over the tracked period. This is an independent estimate, not affiliated with Amazon Alexa, which discontinued its own ranking service in 2022.
Who hosts grc.com?
Grc.com resolves to 4.79.142.200, on the network of Level 3 Communications (AS3356).
What email provider does grc.com use?
According to its MX records, grc.com receives email with Self-hosted / other (grc.com). It publishes an SPF record to authenticate its outgoing mail.
When does grc.com expire?
The domain registration of grc.com is valid until December 16, 2033 (in 2,597 days), at Tucows Domains Inc.. Owners usually renew before that date.
What websites are similar to grc.com?
Popular websites in the same category as grc.com include alxgbsn.co.uk, gibsonfoundation.org, cognizant.com, page.tl, cyberchimps.com.
Own grc.com? Add the badge
Shows your live global rank. To cite this report: “StatMemory, grc.com website report, https://statmemory.com/grc.com”.
StatMemory is not affiliated with grc.com. This report shows publicly available data (DNS, WHOIS, HTTP headers, public top-site lists) and automated estimates for information purposes.