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https://computerhope.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
91
GRADE
A
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.computerhope.com/
200https://computerhope.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://computerhope.com/ https://computerhope.com/

Consistent

B
TLS Certificate Expiry & Recommendations
53 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

53
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
B
CDN & Delivery
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9f07badb7d6e9990-CDG
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9f07badb7d6e9990-CDG
A+
DNS Records
2 A records, 50 ms lookup
PASS
2 A records, 50 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.66.140.114, 172.66.132.161
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:10::ac42:8c72, 2606:4700:10::ac42:84a1
Info::
2 nameserver(s) configured
Got: donna.ns.cloudflare.com, alex.ns.cloudflare.com
Info::
5 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 50 ms
Got: 50 ms
A172.66.140.114, 172.66.132.161
AAAA2606:4700:10::ac42:8c72, 2606:4700:10::ac42:84a1
CNAME
NSdonna.ns.cloudflare.com, alex.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
k=rsa;t=s;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCbmGbQMzYeMvxwtNQoXN0waGYaciuK...
SPF v=spf1 a mx include:_spf.google.com include:_spf.elasticemail.com ~all
google-site-verification=BIo8Io-tAkT-yhmN1W_8zjrjG2n7kK3mHxCA1FYBm_E
CAALookup not available with standard resolver
Resolved in 50 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A
Redirect Chain
1 redirect(s), 261 ms total
PASS
1 redirect(s), 261 ms total
Info::
Single redirect
Got: https://computerhope.com → https://www.computerhope.com/ (301)
Info::
WWW normalization redirect

https://computerhope.com

58 ms · HTTP/1.1

301

https://www.computerhope.com/

202 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://computerhope.com30158 msHTTP/1.1cloudflare
2https://www.computerhope.com/200202 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700:10::ac42:8c72, 2606:4700:10::ac42:84a1
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:10::ac42:8c72, 2606:4700:10::ac42:84a1 Connection Reachable (17 ms)
A
Crawlability
robots.txt present, no sitemap
PASS
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 9655 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt references sitemap

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

robots.txt 200 OK
Size 9655 B Sitemaps referenced 1 User-agents AI2Bot, Brightbot 1.0, FacebookBot, SemrushBot-SWA, Sidetrade indexer bot, BotRightHere, Cegbfeieh, DuckAssistBot, Webzio-Extended, Fetch, Microsoft URL Control - 5.01.4511, lwp-trivial, NPBot, TurnitinBot, VCI, LNSpiderguy, moget/2.1, True_Robot, UbiCrawler, Web Image Collector, WebEnhancer, Black Hole, Microsoft URL Control - 6.00.8169, Offline Explorer, Szukacz/1.4, *, SemrushBot-OCOB, DittoSpyder, humanlinks, ia_archiver, WWW-Collector-E, Xenu's Link Sleuth 1.1c, Zeus 32297 Webster Pro V2.9 Win32, omgili, Crescent, lwp-trivial/1.34, Xenu's, Cohere-training-data-crawler, Meta-ExternalFetcher, PiplBot, DOC, libwww, SiteSucker, Teleport, WebCopier v4.0, YouBot, Harvest/1.5, InfoNaviRobot, The Intraformant, WebZip, Amazonbot, iaskspider/2.0, AwarioSmartBot, LexiBot, linko, RepoMonkey Bait & Tackle/v1.01, suzuran, TeleportPro, VelenPublicWebCrawler, Crescent Internet ToolPak HTTP OLE Control v.1.0, MIIxpc, SnapPreviewBot, VCI WebViewer VCI WebViewer Win32, Wget/1.6, ImagesiftBot, Kangaroo Bot, FriendlyCrawler, Perplexity-User, BotALot, EmailWolf, Bullseye/1.0, ExtractorPro, Mister PiX, BunnySlippers, JennyBot, Microsoft.URL.Control, toCrawl/UrlDispatcher, WebBandit/3.50, Ai2Bot-Dolma, OAI-SearchBot, PetalBot, SpankBot, TightTwatBot, Titan, Crawlspace, hloader, Mata Hari, Nutch, ProPowerBot/2.14, Teleport Pro/1.29, URLy Warning, Website Quester, Timpibot, AwarioRssBot, EroCrawler, httplib, Magpie-crawler, WebStripper, Cohere-ai, BackDoorBot/1.0, Kenjin Spider, True_Robot/1.0, WebmasterWorldForumBot, WebZip/4.0, Bytespider, ChatGPT-User, GPTBot, 008, BuiltBotTough, EmailSiphon, LinkextractorPro, ICC-Crawler, Diffbot, Atomic_Email_Hunter, Scrapy, CopyRightCheck, grub-client, LinkWalker, ProWebWalker, Applebot, CherryPickerSE/1.0, Webster Pro, Download Ninja, TheNomad, WebCopier, Wget, b2w/0.1, Claude-Web, Anthropic-Ai, Applebot-Extended, CherryPicker, Foobot, Missigua Locator, Voltron, CCBot, asterias, discobot, HTTrack, ieautodiscovery, MIIxpc/4.2, Keyword Density/0.9, Openfind data gathere, img2dataset, Meta-ExternalAgent, CheeseBot, Fasterfox, k2spider, SiteSnagger, WebAuto, BlowFish/1.0, larbin, moget, Site Sucker, WebSauger, ISSCyberRiskCrawler, Mediapartners-Google, CherryPickerElite/1.0, NICErsPRO, RMA, Telesoft, ZyBORG, EmailCollector, LinkScan/8.1a Unix, QueryN Metasearch, RepoMonkey, turingos, WebReaper, Zao, Zeus, PerplexityBot, MSIECrawler, NetAnts, Peer39_crawler/1.0, Web Downloader/6.9, omgilibot, cosmos, libWeb/clsHTTP, PanguBot, Openfind, sitecheck.Internetseer.com, spanner, WebBandit, Wget/1.5.3, ClaudeBot Blocking No — crawling allowed
# robots.txt file for https://www.computerhope.com/

# What is a robots.txt: https://www.computerhope.com/jargon/r/robotstx.htm

# Last updated: 7/28/2025


# Computer Hope content is made available for your non-commercial use subject to our

# TOS (Terms of Service) found at: https://www.computerhope.com/legal.htm

# Use of any crawler, robot, or other tool to scrape, harvest, extract, or retrieve any content on

# this website using automated means is prohibited without written permission from Computer Hope.

# Prohibited uses include but are not limited to:

# 1. Development or operation of AI or machine learning databases or software.

# 2. Creating data sets containing our content or sharing it with others.

# 3. Any commercial purposes.


# Send comments about this file to: https://www.computerhope.com/contact/


Sitemap: https://www.computerhope.com/sitemap.xml

User-agent: Mediapartners-Google

Disallow:


User-agent: *


Disallow: /cgi-bin/process/

Disallow: /cgi-bin/search.cgi*

Disallow: /cgi-bin/error.cgi*

Disallow: /forum/index.php?action=activate

Disallow: /forum/index.php?action=admin

Disallow: /forum/index.php?action=arcade

Disallow: /forum/index.php?action=calendar

Disallow: /forum/index.php?action=collapse

Disallow: /forum/index.php?action=deletemsg

Disallow: /forum/index.php?action=editpoll

Disallow: /forum/index.php?action=help

Disallow: /forum/index.php?action=helpadmin

Disallow: /forum/index.php?action=lock

Disallow: /forum/index.php?action=login

Disallow: /forum/index.php?action=logout

Disallow: /forum/index.php?action=markasread

Disallow: /forum/index.php?action=mergetopics

Disallow: /forum/index.php?action=mlist

Disallow: /forum/index.php?action=modifykarma

Disallow: /forum/index.php?action=movetopic

Disallow: /forum/index.php?action=notify

Disallow: /forum/index.php?action=notifyboard

Disallow: /forum/index.php?action=pm

Disallow: /forum/index.php?action=post

Disallow: /forum/index.php?action=profile

Disallow: /forum/index.php?action=register

Disallow: /forum/index.php?action=removetopic2

Disallow: /forum/index.php?action=reporttm

Disallow: /forum/index.php?action=search

Disallow: /forum/index.php?action=sendtopic

Disallow: /forum/index.php?action=splittopics

Disallow: /forum/index.php?action=stats

Disallow: /forum/index.php?action=sticky

Disallow: /forum/index.php?action=trackip

Disallow: /forum/index.php?action=unread

Disallow: /forum/index.php?action=unreadreplies

Disallow: /forum/index.php?action=who


#Block AI crawlers

User-agent: AI2Bot

Disallow: /

User-agent: Ai2Bot-Dolma

Disallow: /

User-agent: Amazonbot

Disallow: /

User-agent: Anthropic-Ai

Disallow: /

User-agent: Applebot

Disallow: /

User-agent: Applebot-Extended

Disallow: /

User-agent: Brightbot 1.0

Disallow: /

User-agent: Bytespider

Disallow: /

User-agent: CCBot

Disallow: /

User-agent: ChatGPT-User

Disallow: /

User-agent: Claude-Web

Disallow: /

User-agent: ClaudeBot

Disallow: /

User-agent: Cohere-ai

Disallow: /

User-agent: Cohere-training-data-crawler

Disallow: /

User-agent: Crawlspace

Disallow: /

User-agent: Diffbot

Disallow: /

User-agent: DuckAssistBot

Disallow: /

User-agent: FacebookBot

Disallow: /

User-agent: FriendlyCrawler

Disallow: /

User-agent: GPTBot

Disallow: /

User-agent: iaskspider/2.0

Disallow: /

User-agent: ICC-Crawler

Disallow: /

User-agent: ImagesiftBot

Disallow: /

User-agent: img2dataset

Disallow: /

User-agent: ISSCyberRiskCrawler

Disallow: /

User-agent: Kangaroo Bot

Disallow: /

User-agent: Meta-ExternalAgent

Disallow: /

User-agent: Meta-ExternalFetcher

Disallow: /

User-agent: OAI-SearchBot

Disallow: /

User-agent: omgili

Disallow: /

User-agent: omgilibot

Disallow: /

User-agent: PanguBot

Disallow: /

User-agent: PerplexityBot

Disallow: /

User-agent: Perplexity-User

Disallow: /

User-agent: PetalBot

Disallow: /

User-agent: PiplBot

Disallow: /

User-agent: Scrapy

Disallow: /

User-agent: SemrushBot-OCOB

Disallow: /

User-agent: SemrushBot-SWA

Disallow: /

User-agent: Sidetrade indexer bot

Disallow: /

User-agent: Timpibot

Disallow: /

User-agent: VelenPublicWebCrawler

Disallow: /

User-agent: Webzio-Extended

Disallow: /

User-agent: YouBot

Disallow: /


#Other bots not allowed

User-agent: 008

Disallow: /

User-agent: asterias

Disallow: /

User-agent: Atomic_Email_Hunter

Disallow: /

User-agent: AwarioRssBot

Disallow: /

User-agent: AwarioSmartBot

Disallow: /

User-agent: b2w/0.1

Disallow: /

User-agent: BackDoorBot/1.0

Disallow: /

User-agent: Black Hole

Disallow: /

User-agent: BlowFish/1.0

Disallow: /

User-agent: BotALot

Disallow: /

User-agent: BotRightHere

Disallow: /

User-agent: BuiltBotTough

Disallow: /

User-agent: Bullseye/1.0

Disallow: /

User-agent: BunnySlippers

Disallow: /

User-agent: Cegbfeieh

Disallow: /

User-agent: CheeseBot

Disallow: /

User-agent: CherryPicker

Disallow: /

User-agent: CherryPickerElite/1.0

Disallow: /

User-agent: CherryPickerSE/1.0

Disallow: /

User-agent: CopyRightCheck

Disallow: /

User-agent: cosmos

Disallow: /

User-agent: Crescent

Disallow: /

User-agent: Crescent Internet ToolPak HTTP OLE Control v.1.0

Disallow: /

User-agent: discobot

Disallow: /

User-agent: DittoSpyder

Disallow: /

User-agent: DOC

Disallow: /

User-agent: Download Ninja

Disallow: /

User-agent: EmailCollector

Disallow: /

User-agent: EmailSiphon

Disallow: /

User-agent: EmailWolf

Disallow: /

User-agent: EroCrawler

Disallow: /

User-agent: ExtractorPro

Disallow: /

User-agent: Fasterfox

Disallow: /

User-agent: Fetch

Disallow: /

User-agent: Foobot

Disallow: /

User-agent: grub-client

Disallow: /

User-agent: Harvest/1.5

Disallow: /

User-agent: hloader

Disallow: /

User-agent: httplib

Disallow: /

User-agent: HTTrack

Disallow: /

User-agent: humanlinks

Disallow: /

User-agent: ia_archiver

Disallow: /

User-agent: ieautodiscovery

Disallow: /

User-agent: InfoNaviRobot

Disallow: /

User-agent: JennyBot

Disallow: /

User-agent: k2spider

Disallow: /

User-agent: Kenjin Spider

Disallow: /

User-agent: Keyword Density/0.9

Disallow: /

User-agent: larbin

Disallow: /

User-agent: LexiBot

Disallow: /

User-agent: libWeb/clsHTTP

Disallow: /

User-agent: libwww

Disallow: /

User-agent: LinkextractorPro

Disallow: /

User-agent: linko

Disallow: /

User-agent: LinkScan/8.1a Unix

Disallow: /

User-agent: LinkWalker

Disallow: /

User-agent: LNSpiderguy

Disallow: /

User-agent: lwp-trivial

Disallow: /

User-agent: lwp-trivial/1.34

Disallow: /

User-agent: Magpie-crawler

Disallow: /

User-agent: Mata Hari

Disallow: /

User-agent: Microsoft.URL.Control

Disallow: /

User-agent: Microsoft URL Control - 5.01.4511

Disallow: /

User-agent: Microsoft URL Control - 6.00.8169

Disallow: /

User-agent: MIIxpc

Disallow: /

User-agent: MIIxpc/4.2

Disallow: /

User-agent: Missigua Locator

Disallow: /

User-agent: Mister PiX

Disallow: /

User-agent: moget

Disallow: /

User-agent: moget/2.1

Disallow: /

User-agent: MSIECrawler

Disallow: /

User-agent: NetAnts

Disallow: /

User-agent: NICErsPRO

Disallow: /

User-agent: NPBot

Disallow: /

User-agent: Nutch

Disallow: /

User-agent: Offline Explorer

Disallow: /

User-agent: Openfind

Disallow: /

User-agent: Openfind data gathere

Disallow: /

User-agent: Peer39_crawler/1.0

Disallow: /

User-agent: ProPowerBot/2.14

Disallow: /

User-agent: ProWebWalker

Disallow: /

User-agent: QueryN Metasearch

Disallow: /

User-agent: RepoMonkey

Disallow: /

User-agent: RepoMonkey Bait & Tackle/v1.01

Disallow: /

User-agent: RMA

Disallow: /

User-agent: sitecheck.Internetseer.com

Disallow: /

User-agent: SiteSnagger

Disallow: /

User-agent: SiteSucker

Disallow: /

User-agent: Site Sucker

Disallow: /

User-agent: SnapPreviewBot

Disallow: /

User-agent: SpankBot

Disallow: /

User-agent: spanner

Disallow: /

User-agent: suzuran

Disallow: /

User-agent: Szukacz/1.4

Disallow: /

User-agent: Teleport

Disallow: /

User-agent: TeleportPro

Disallow: /

User-agent: Teleport Pro/1.29

Disallow: /

User-agent: Telesoft

Disallow: /

User-agent: TurnitinBot

Disallow: /

User-agent: The Intraformant

Disallow: /

User-agent: TheNomad

Disallow: /

User-agent: TightTwatBot

Disallow: /

User-agent: Titan

Disallow: /

User-agent: toCrawl/UrlDispatcher

Disallow: /

User-agent: True_Robot

Disallow: /

User-agent: True_Robot/1.0

Disallow: /

User-agent: turingos

Disallow: /

User-agent: UbiCrawler

Disallow: /

User-agent: URLy Warning

Disallow: /

User-agent: VCI

Disallow: /

User-agent: VCI WebViewer VCI WebViewer Win32

Disallow: /

User-agent: Voltron

Disallow: /

User-agent: Web Image Collector

Disallow: /

User-agent: Web Downloader/6.9

Disallow: /

User-agent: WebAuto

Disallow: /

User-agent: WebBandit

Disallow: /

User-agent: WebBandit/3.50

Disallow: /

User-agent: WebCopier

Disallow: /

User-agent: WebCopier v4.0

Disallow: /

User-agent: WebEnhancer

Disallow: /

User-agent: WebmasterWorldForumBot

Disallow: /

User-agent: WebReaper

Disallow: /

User-agent: WebSauger

Disallow: /

User-agent: Website Quester

Disallow: /

User-agent: Webster Pro

Disallow: /

User-agent: WebStripper

Disallow: /

User-agent: WebZip

Disallow: /

User-agent: WebZip/4.0

Disallow: /

User-agent: Wget

Disallow: /

User-agent: Wget/1.5.3

Disallow: /

User-agent: Wget/1.6

Disallow: /

User-agent: WWW-Collector-E

Disallow: /

User-agent: Xenu's

Disallow: /

User-agent: Xenu's Link Sleuth 1.1c

Disallow: /

User-agent: Zao

Disallow: /

User-agent: Zeus

Disallow: /

User-agent: Zeus 32297 Webster Pro V2.9 Win32

Disallow: /

User-agent: ZyBORG

Disallow: /


sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

A+
Domain Intelligence
computerhope.com — via Cloudflare, Inc., 28 years, 2 months old
PASS
computerhope.com — via Cloudflare, Inc., 28 years, 2 months old
Info::
Domain registered until Feb 3, 2036 (9 years, 11 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: Cloudflare, Inc.
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Domain expiry

3490 days

February 3, 2036

SSL certificate

53 days

Issued by Google Trust Services

Domain age

28 years, 2 months

Registered July 14, 1998

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:10::ac42:84a1

Registrar

Cloudflare, Inc.

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Cloudflare, Inc.
Created July 14, 1998 (28 years, 2 months ago)
Expires February 3, 2036 (9 years, 11 months)
Last Updated March 3, 2026
Name Servers alex.ns.cloudflare.com, donna.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:10::ac42:84a1
Data source: rdap (0.1s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 108 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
49 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
16 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
22 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
108 ms
Total Time Total request time from DNS lookup through full response.
108 ms

Connection waterfall

DNS Lookup 49 ms TCP Connect 16 ms TLS Handshake 22 ms Server Processing 21 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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