hostinfo

irs.gov

Overview

IP	166.123.218.220
Hosted Country	United States
Provider	—
Registration Date	0000-00-00
Expiration Date	0000-00-00
Registrar	—
Safe Browsing	No risk issues
PageSpeed Score	Check PageSpeed →
Speed test	Run speed test →

Last analysis: 2018-01-27 14:02:09 (8 years 7 months ago)

Update is temporarily locked — you can refresh again after the cooldown.

Traffic

Global rank	#1,218
Est. monthly visits	40,674,060
Daily Unique Visitors	1,355,802
Daily Pageviews	10,846,416

Global rank from public popularity lists; visits are a model estimate, not measured panel traffic.

Search Engine Backlinks

Referring domains	962,000
Link authority	—
Graph rank	—

Referring-domain totals come from the public Common Crawl graph (full page/anchor index like Ahrefs is paid-only). Linking pages and anchor texts below are a live web sample.

Security

SSL Certificate	Refresh to collect SSL data
Security Headers	—
Email Authentication	—

DNS

A	166.123.218.220
NS	ns4.irs.gov
NS	ns2.irs.gov
NS	ns1.irs.gov
NS	ns3.irs.gov
SOA	ns1.irs.gov it\.aciouns\.external\.dns\.admin.irs.gov 2010086738 3600 1800 2419200 900
MX	20 emgw.irs.gov
MX	10 emgc.irs.gov
MX	10 emge.irs.gov
TXT	v=spf1 ip4:152.216.0.0/20 ip6:2610:30::/32 include:qai.irs.gov -all

HTTP Header Analysis

Http-Version	1.0
Status-Code	200
Status	200 OK
Content-Type	text/html; charset=UTF-8
X-Drupal-Dynamic-Cache	UNCACHEABLE
Link	<https://s.ytimg.com>;rel="preconnect",<https://static.addtoany.com>;rel="preconnect",<https://www.google-analytics.com>;rel="preconnect",<https://www.youtube.com>;rel="preconnect"
X-UA-Compatible	IE=edge
Content-Language	en
X-Content-Type-Options	nosniff
X-Frame-Options	SameOrigin
Last-Modified	Sat, 27 Jan 2018 05:40:12 GMT
ETag	"1517031612"
X-Generator	Drupal 8 (https://www.drupal.org)
X-Drupal-Cache	MISS
Content-Encoding	gzip
X-Request-ID	v-8b660778-0324-11e8-a001-0e08d7b5118e
X-AH-Environment	prod
X-Varnish	636356146
X-Age	0
Accept-Ranges	bytes
Content-Length	14253
X-EdgeConnect-MidMile-RTT	4
X-EdgeConnect-Origin-MEX-Latency	1659
Cache-Control	public, max-age=86400
Expires	Sun, 28 Jan 2018 14:02:02 GMT
Date	Sat, 27 Jan 2018 14:02:02 GMT
Connection	close
Vary	Accept-Encoding
Strict-Transport-Security	max-age=31536000

WHOIS

Registrar	—
Registration Date	0000-00-00
Updated	0000-00-00
Expiration Date	0000-00-00
Status	—
Name servers	ns4.irs.gov, ns2.irs.gov, ns1.irs.gov, ns3.irs.gov

% DOTGOV WHOIS Server ready
Domain Name: IRS.GOV
Status: ACTIVE

>>> Last update of whois database: 2018-01-27T14:02:10Z

Technology & delivery

Server	—
CMS	—
CDN	—
TTFB	—
Web Archive	web.archive.org/web/*/irs.gov
Robots / Sitemap	—

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