About: Internet security resource featuring Shields Up - tests PCs ports for resistance against ***; and a CIH virus recovery tool.
Steve Gibson's and Gibson Research Corporation's Web homepage. Edit Site Info

What technologies does grc.com use?

These are the technologies used at grc.com. grc.com has a total of 3 technologies installed in 3 different categories.

Analytics

Google Analytics

Security

HSTS

Miscellaneous

PWA

grc.com Traffic Analysis

Grc.com is ranked #356,288 in the world. This website is viewed by an estimated 16.4K visitors daily, generating a total of 36.5K pageviews. This equates to about 497K monthly visitors. Grc.com traffic has decreased by 7.1% compared to last month.

Daily Visitors16.4K

9.24%

Monthly Visits497K

7.1%

Pages per Visit2.22

29.71%

Visit duration00:56

46.1%

Bounce Rate48.08%

0.87%

Is this your site?Verify your site's metrics.

Daily Unique Visitors:: 16,404
Monthly Visits:: 497,041
Pages per Visit:: 2.22
Daily Pageviews:: 36,498

Avg. visit duration:: 00:56
Bounce rate:: 48.08%
Global Reach:: 0.0003327%
Monthly Visits (SEMrush):: 262,249
Monthly Unique Visitors (SEMrush):: 223,089
Monthly Visits (SimilarWeb):: 482,470
HypeRank:: 356,288
SEMrush Rank:: 124,972
SimilarWeb Rank:: 109,206

*All traffic values are estimates only.

Traffic sources

Direct:: 38.01%
Referral:: 11.27%
Search:: 40.81%
Social:: 9.92%
Paid:: 0%

Desktop vs Mobile

Desktop:: 82.02%
Mobile:: 17.98%

Total Visits Last 3 Months

423.7K

NOV

535K

DEC

497K

JAN

Visitors by country

Country: Users%
: United States 22.54%
: Russian Federation 4.79%
: Germany 4.24%
: China 3.52%
: United Kingdom 3.32%

Where do visitors go on grc.com?

: Reach%Pageviews%PerUser
grc.com: 99.92%99.73%1.5
OTHER: 0%0.27%0

▼

SEMrush is a complete on line advertising and marketing platform that gives a extensive variety of gear and functions to help companies and entrepreneurs in enhancing their on line visibility and optimizing their virtual advertising and marketing strategies.

Domain:: grc.com
Rank: (Rank based on keywords, cost and organic traffic): 124,972
Organic Keywords: (Number of keywords in top 20 Google SERP): 12,120
Organic Traffic: (Number of visitors coming from top 20 search results): 14,927
Organic Cost: ((How much need to spend if get same number of visitors from Google Adwords): $49,082.00

Full SEMrush Report >>

Backlinks Report ▼

Grc.com has a total of 60,079 backlinks from 4,870 referring domains and most of them comes from United States.

Total Backlinks:: 60,079
Follow Links:: 48,255
Nofollow Links:: 11,823
Referring Domains:: 4,870
Referring IPs:: 4,389
Authority Domain Score:: 45

Backlinks by country

Country: Domains
: United States 2,205
: Germany 331
: France 319
: Singapore 179
: United Kingdom 162

Backlinks by TLDs

TLD Distribution: Domains
.com: 2,351
.org: 492
.net: 473
.edu: 53
.gov: 0

Which sites are competitors to grc.com?

Websites similar to grc.com are sites similar on user interests and browsing behavior. Users can discover new websites that are similar to the ones they already enjoy or find useful.

Domain: CompareDaily Visitors
virustotal.com: Compare >448.7K
askwoody.com: Compare >14.4K
pentest-tools.com: Compare >13.3K
krebsonsecurity.com: Compare >11.4K
dnsspeedtest.online: Compare >10.9K
portchecker.co: Compare >9.4K
ipvoid.com: Compare >9K
safer-networking.org: Compare >3.5K

Last update was 6 hours ago

This can take up to 60 seconds. Please wait...

Update will be available in 18 hours

*HypeStat.com is not promoting or affiliated with grc.com in any way. Only publicly available statistics data are displayed.

Search Engine Indexes ▼

Search engine indexes are huge databases or collections of net pages that search engines like google like google and yahoo use to retrieve applicable facts while customers carry out searches. These indexes are created through search engines like google and yahoo through crawling and indexing net pages from throughout the internet.

Google Index:: 15,000

Revenue report ▼

grc.com would generate approximately $137.7 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $4.1K and annual gross revenue of approximately $50.3K. Based on these figures, the site's net worth is estimated at around $165.3K.

How much would grc.com make?

Daily Revenue:: $137.71
Monthly Revenue:: $4,131.30
Yearly Revenue:: $50,264.15

*All earnings values are estimates only.

Daily earning by country

: CountryPageviewsEarning
: United States 8,227$39.73
: United Kingdom 1,212$3.25
: Germany 1,547$2.17
: Russian Federation 1,748$0.72
: China 1,286$0.13

Loss of money due to Adblock?

Daily Revenue Loss:: $8.36
Monthly Revenue Loss:: $250.79
Yearly Revenue Loss:: $3,051.28
Daily Pageviews Blocked:: 2,395
Monthly Pageviews Blocked:: 71,860
Yearly Pageviews Blocked:: 874,295

Daily revenue loss by country

: CountryBlockedLost Money
: United States 1,481$7.15
: Germany 449$0.63
: United Kingdom 194$0.52
: Russian Federation 105$0.04
: China 167$0.02

How much is grc.com worth?

Website Value:: $165.3K

Ad Experience Report ▼

Summary of the ad experience rating of a website for a specific platform.

Mobile summary

Root domain:: grc.com
Ad filtering: (Chrome is not filtering ads on your site.): Off
Status: (The status of the site that is reviewed for the Better Ads Standards.): Not reviewed

Desktop summary

Root domain:: grc.com
Ad filtering: (Chrome is not filtering ads on your site.): Off
Status: (The status of the site that is reviewed for the Better Ads Standards.): Not reviewed

Abusive Experience Report ▼

Summary of the abusive experience rating of a website.

Root domain:: grc.com
Enforcement: (Chrome is not preventing your site from opening new windows or tabs.): Off
Status: (The status of the site reviewed for the abusive experiences.): Not reviewed

Where is grc.com hosted? ▼

Grc.com may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.

Server IP:: 4.79.142.200
ASN:: AS3356
ISP:: Level 3 Communications, Inc.
Server Location:: Reeds Spring
Missouri, MO
65737
United States, US

Other sites hosted on 4.79.142.200

There are no other sites hosted on this IP

How fast does grc.com load? ▼

The average loading time of grc.com is 1949 ms. The Desktop speed index is 90 and mobile speed index is 63.

Average Load Time:: 1949 ms

Page Speed (Google PageSpeed Insights) - Desktop

Field Data

Over the last 30 days, the field data shows that this page has a SLOW speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

Cumulative Layout Shift (CLS)0ms

Time To First Byte (TTFB)2.0s

First Contentful Paint (FCP)2.8s

First Input Delay (FID)0

Interaction To Next Paint (INP)26ms

Largest Contentful Paint (LCP)3.3s

Origin Data

All pages served from this origin have an AVERAGE speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Cumulative Layout Shift (CLS)0ms

Time To First Byte (TTFB)1.0s

First Contentful Paint (FCP)1.5s

First Input Delay (FID)0

Interaction To Next Paint (INP)27ms

Largest Contentful Paint (LCP)2.3s

Lab Data

Speed Index 2.7 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric

Max Potential First Input Delay 50 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric

INP breakdown
Start investigating by looking at the longest subpart. how to improve INP

Largest Contentful Paint 1.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric

Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric

Time to Interactive 1.3 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric

First Contentful Paint 0.6 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric

Page Speed (Google PageSpeed Insights) - Mobile

Field Data

Over the last 30 days, the field data shows that this page has a speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

Cumulative Layout Shift (CLS)0

Time To First Byte (TTFB)0

First Contentful Paint (FCP)0

First Input Delay (FID)0

Interactive To Next Paint (INP)0

Largest Contentful Paint (LCP)0

Origin Data

All pages served from this origin have an speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Cumulative Layout Shift (CLS)0

Time To First Byte (TTFB)0

First Contentful Paint (FCP)0

First Input Delay (FID)0

Interactive To Next Paint (INP)0

Largest Contentful Paint (LCP)0

Lab Data

Does grc.com use compression? ▼

Website compression is the process of reducing the size of website files, such as HTML, CSS, JavaScript, and image files, to improve website performance and load times. Compressing website files can significantly reduce the amount of data that needs to be transferred from the server to the user's browser, resulting in faster page load times and improved user experience. Files on grc.com are reduced by 67%.

grc.com use gzip compression.

Original size: 11.78 KB
Compressed size: 3.84 KB
File reduced by: 7.94 KB (67%)

Google Safe Browsing ▼

Google Safe Browsing is a service provided by Google that helps protect users from visiting websites that may contain malicious or harmful content, such as malware, phishing attempts, or deceptive software.

This site is not currently listed as suspicious

MyWot.com Reputation Ratings

MyWOT (short for "My Web of Trust") is a web-based reputation and rating service that provides users with information about the trustworthiness and safety of websites. grc.com has 93 Safety Reputations.

Status:: SAFE
Safety Reputations:: 93
Safety Confidence:: 61
Child Safety Reputations:: 94
Child Safety Confidence:: 59

SSL Checker - SSL Certificate Verify ▼

An SSL (Secure Sockets Layer) certificate is a digital certificate that establishes a secure encrypted connection between a web server and a user's web browser. It provides authentication and encryption, ensuring that data transmitted between the server and the browser remains private and protected. grc.com supports HTTPS.

grc.com supports HTTPS

Verifying SSL Support. Please wait...

Common Name: grc.com
Organization: Gibson Research Corporation
Location: Laguna Niguel, California, US
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from: Jul 23 00:00:00 2025 GMT
Valid until: Aug 23 23:59:59 2026 GMT
Authority: CA:FALSE
Keysize: 2048 Bits

Common Name: DigiCert Global G2 TLS RSA SHA256 2020 CA1
Organization: DigiCert Inc
Location: US
Issuer: DigiCert Global Root G2
Valid from: Mar 30 00:00:00 2021 GMT
Valid until: Mar 29 23:59:59 2031 GMT
Authority: CA:TRUE
Keysize: 2048 Bits

Verify HTTP/2 Support ▼

HTTP/2 (Hypertext Transfer Protocol version 2) is a major revision of the HTTP protocol, which is the foundation of data communication on the World Wide Web. It was developed as an improvement over the previous HTTP/1.1 version to enhance web performance and efficiency.

grc.com does not support HTTP/2

Verifying HTTP/2.0 Support. Please wait...

Site Categories ▼

Website categories are used to classify websites based on their content or purpose. These categories provide a way to organize and filter websites, allowing users to find relevant information or ensure compliance with specific regulations or policies.

Internet/Products and Tools
Privacy/Products and Tools

Http Header ▼

HTTP headers are extra portions of records despatched among a consumer (which include an internet browser) and a server at some stage in an HTTP request or response. They offer instructions, metadata, or manipulate parameters for the conversation among the consumer and server.

Location: https://www.grc.com/intro.htm
Access-Control-Allow-Origin: *
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=31536000; preload
Server: GRC/IIS Hybrid Application Webserver
Date: Mon, 16 Feb 2026 14:08:31 GMT
Content-Length: 0

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=bbwdj1sv4tebr; path=/
Set-Cookie: ppag=bbwdj1sv4tebr; path=/; expires=Mon, 01-Jan-2046 00:00:00 GMT
Server: GRC/IIS Hybrid Application Webserver
Date: Mon, 16 Feb 2026 14:08:32 GMT
Connection: close
Content-Length: 3935

DNS Lookup ▼

DNS entries (Domain Name System) are a critical component of the Internet infrastructure. They act as directories that translate human-readable domain names (such as example.com) to machine-readable IP addresses. DNS records are stored on DNS servers and help forward internet traffic efficiently.

Type	Ip	Target/Txt	TTL
SOA			28800
	Mname	grc.com
	Rname	dns2005.grc.com
	Serial Number	2026021000
	Refresh	14400
	Retry	300
	Expire	5184000
	Minimum TTL	14400
NS		ns4.customer.level3.net	28800
NS		ns6.customer.level3.net	28800
A	4.79.142.200		28800
TXT		_e9izydias4fdktb7grdz8lx129rf0kz	28800
TXT		7pdq8vl28psslbzzx8g9s3pbwjvksk24	28800
TXT		google-site-verification=lTHvpojcfPIYXGkOqbku5TcOkpo52Exo-qWuQJi5bpw	28800
TXT		v=spf1 ip4:4.79.142.192/28 a:client.grc.com a:grc.com -all	28800
TXT		_bpovimyxhv2xbvowiwnvlkhz27b4z4f	28800
CAA		digicert.com	28800
MX		grc.com	28800

Whois Lookup ▼

Domain WHOIS is a public database that provides information about domain names, including registered owners, contact information, domain registrars, registration and expiration dates, name servers, and other relevant information. Domain registration for this website began on December 17, 1991 and will expire on December 16, 2026 if not renewed. This website is now assigned through the registrar Tucows Domains Inc.. The WHOIS data for this website's domain was last updated on December 11, 2017.

Domain Created:: 1991-12-17
Domain Expires:: 2026-12-16
Domain Updated:: 2017-12-11
Domain Age:: 34 years 1 months 30 days
Domain Registrar:: Tucows Domains Inc.
WhoIs:

   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: 2017-12-11T05:33:31Z
   Creation Date: 1991-12-17T05:00:00Z
   Registry Expiry Date: 2026-12-16T05:00:00Z
   Registrar: Tucows Domains Inc.
   Registrar IANA ID: 69
   Registrar Abuse Contact Email: 
   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: 2023-10-24T10:46:52Z