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https://imageshack.us

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
88
GRADE
B
FIX
0
REVIEW
4
PASS
5
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
5 PASS 4 REVIEW
C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 2517 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your 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

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 2517 B Sitemaps referenced 0 User-agents meta-webindexer, Perplexity-User, SemrushBot-OCOB, Thinkbot, TikTokSpider, YouBot, Poseidon Research Crawler, TerraCotta, YandexAdditionalBot, Ai2Bot-Dolma, CloudVertexBot, Google-Extended, WARDBot, Webzio-Extended, YaK, YandexAdditional, *, ChatGPT-User, GoogleAgent-Mariner, QuillBot, Scrapy, Sidetrade indexer bot, anthropic-ai, ClaudeBot, Meta-ExternalAgent, MyCentralAIScraperBot, SBIntuitionsBot, Claude-User, Echobot Bot, Diffbot, LinerBot, quillbot.com, VelenPublicWebCrawler, aiHitBot, Applebot-Extended, Google-Firebase, omgili, ChatGPT Agent, GoogleOther-Image, panscient.com, PhindBot, Amazonbot, Awario, Claude-Web, Google-CloudVertexBot, GoogleOther-Video, omgilibot, OpenAI, PanguBot, bedrockbot, CCBot, Datenbank Crawler, FriendlyCrawler, ImagesiftBot, Meta-ExternalFetcher, PetalBot, SemrushBot-SWA, Claude-SearchBot, GoogleOther, iaskspider/2.0, ISSCyberRiskCrawler, meta-externalagent, netEstate Imprint Crawler, NovaAct, Operator, Andibot, bigsur.ai, cohere-training-data-crawler, Crawlspace, FirecrawlAgent, GPTBot, ICC-Crawler, meta-externalfetcher, Applebot, cohere-ai, Devin, DuckAssistBot, MistralAI-User/1.0, PerplexityBot, ShapBot, Timpibot, AI2Bot, Brightbot 1.0, Cotoyogi, EchoboxBot, img2dataset, OAI-SearchBot, QualifiedBot, wpbot, AddSearchBot, Bytespider, FacebookBot, facebookexternalhit, Factset_spyderbot, Kangaroo Bot, MistralAI-User, Panscient, Gemini-Deep-Research Blocking No — crawling allowed
User-agent: AddSearchBot
User-agent: AI2Bot
User-agent: Ai2Bot-Dolma
User-agent: aiHitBot
User-agent: Amazonbot
User-agent: Andibot
User-agent: anthropic-ai
User-agent: Applebot
User-agent: Applebot-Extended
User-agent: Awario
User-agent: bedrockbot
User-agent: bigsur.ai
User-agent: Brightbot 1.0
User-agent: Bytespider
User-agent: CCBot
User-agent: ChatGPT Agent
User-agent: ChatGPT-User
User-agent: Claude-SearchBot
User-agent: Claude-User
User-agent: Claude-Web
User-agent: ClaudeBot
User-agent: CloudVertexBot
User-agent: cohere-ai
User-agent: cohere-training-data-crawler
User-agent: Cotoyogi
User-agent: Crawlspace
User-agent: Datenbank Crawler
User-agent: Devin
User-agent: Diffbot
User-agent: DuckAssistBot
User-agent: Echobot Bot
User-agent: EchoboxBot
User-agent: FacebookBot
User-agent: facebookexternalhit
User-agent: Factset_spyderbot
User-agent: FirecrawlAgent
User-agent: FriendlyCrawler
User-agent: Gemini-Deep-Research
User-agent: Google-CloudVertexBot
User-agent: Google-Extended
User-agent: Google-Firebase
User-agent: GoogleAgent-Mariner
User-agent: GoogleOther
User-agent: GoogleOther-Image
User-agent: GoogleOther-Video
User-agent: GPTBot
User-agent: iaskspider/2.0
User-agent: ICC-Crawler
User-agent: ImagesiftBot
User-agent: img2dataset
User-agent: ISSCyberRiskCrawler
User-agent: Kangaroo Bot
User-agent: LinerBot
User-agent: meta-externalagent
User-agent: Meta-ExternalAgent
User-agent: meta-externalfetcher
User-agent: Meta-ExternalFetcher
User-agent: meta-webindexer
User-agent: MistralAI-User
User-agent: MistralAI-User/1.0
User-agent: MyCentralAIScraperBot
User-agent: netEstate Imprint Crawler
User-agent: NovaAct
User-agent: OAI-SearchBot
User-agent: omgili
User-agent: omgilibot
User-agent: OpenAI
User-agent: Operator
User-agent: PanguBot
User-agent: Panscient
User-agent: panscient.com
User-agent: Perplexity-User
User-agent: PerplexityBot
User-agent: PetalBot
User-agent: PhindBot
User-agent: Poseidon Research Crawler
User-agent: QualifiedBot
User-agent: QuillBot
User-agent: quillbot.com
User-agent: SBIntuitionsBot
User-agent: Scrapy
User-agent: SemrushBot-OCOB
User-agent: SemrushBot-SWA
User-agent: ShapBot
User-agent: Sidetrade indexer bot
User-agent: TerraCotta
User-agent: Thinkbot
User-agent: TikTokSpider
User-agent: Timpibot
User-agent: VelenPublicWebCrawler
User-agent: WARDBot
User-agent: Webzio-Extended
User-agent: wpbot
User-agent: YaK
User-agent: YandexAdditional
User-agent: YandexAdditionalBot
User-agent: YouBot
Disallow: /

User-agent: *
Disallow: /download/
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
TLS Certificate Expiry & Recommendations
299 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

299
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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
Varnish
REVIEW
Varnish
Info::
Site is served via Varnish CDN
Got: via: 1.1 varnish
CDN Detected: Varnish
Provider Varnish Evidence via: 1.1 varnish
A+
DNS Records
2 A records, 116 ms lookup
PASS
2 A records, 116 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 208.94.3.18, 208.94.3.19
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns4.imageshack.us, ns5.imageshack.us, ns3.imageshack.us, ns2.imageshack.us
Info::
7 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: 116 ms
Got: 116 ms
A208.94.3.18, 208.94.3.19
AAAA—
CNAME—
NSns4.imageshack.us, ns5.imageshack.us, ns3.imageshack.us, ns2.imageshack.us
MX
10 ASPMX.L.GOOGLE.COM
20 ALT2.ASPMX.L.GOOGLE.COM
20 ALT1.ASPMX.L.GOOGLE.COM
30 ASPMX3.GOOGLEMAIL.COM
30 ASPMX2.GOOGLEMAIL.COM
30 ASPMX4.GOOGLEMAIL.COM
30 ASPMX5.GOOGLEMAIL.COM
TXT
google-site-verification=_UGU9JQAf1954qC5QPZ_XUQcUaasByN8fCQil9h37kA
google-site-verification=Wm-e3CmNBWpMwxyHpCQKhaOCFh7woh3Qq4XUEpLE2i8
Use of content under this domain in AI technologies is subject to the licensing ...
SPF v=spf1 ip4:208.94.0.68 ip4:208.94.0.103 include:_spf.google.com ~all exp=diag.sp...
CAALookup not available with standard resolver
Resolved in 116 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), 42 ms total
PASS
1 redirect(s), 42 ms total
Info::
Single redirect
Got: https://imageshack.us → https://imageshack.com/ (301)
Info::
Cross-domain redirect detected

https://imageshack.us

20 ms · HTTP/1.1

301

https://imageshack.com/

23 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://imageshack.us30120 msHTTP/1.1nginx/1.2.8
2https://imageshack.com/20023 msHTTP/1.1nginx/1.2.8

See the visual redirect chain in the HTTP Probe tab →

A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.imageshack.us/
200https://imageshack.us/

Preferred variant: non-www

HTTP → HTTPS

301http://imageshack.us/ → https://imageshack.com/

Consistent

A+
Domain Intelligence
imageshack.us — via GoDaddy.com, LLC, 22 years, 9 months old, hosted on EZRI-36323 - Ezri Inc, US
PASS
imageshack.us — via GoDaddy.com, LLC, 22 years, 9 months old, hosted on EZRI-36323 - Ezri Inc, US
Info::
Domain registered until Nov 11, 2026 (6 months remaining)
Info::
Registrar: GoDaddy.com, LLC
Info::
Registrar lock is enabled
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Info::
Hosting: EZRI-36323 - Ezri Inc, US
Got: AS36323
Domain expiry

149 days

November 11, 2026

SSL certificate

299 days

Issued by GoDaddy.com, Inc.

Domain age

22 years, 9 months

Registered November 12, 2003

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

EZRI-36323 - Ezri Inc, US

ASN AS36323

208.94.3.18

Registrar

GoDaddy.com, LLC

Locked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar GoDaddy.com, LLC
Created November 12, 2003 (22 years, 9 months ago)
Expires November 11, 2026 (6 months)
Last Updated November 17, 2025
Name Servers ns3.imageshack.us, ns4.imageshack.us, ns5.imageshack.us, ns2.imageshack.us
Registrant ImageShack Corp
Hosting
IP Address 208.94.3.18
ASN AS36323 (EZRI-36323 - Ezri Inc, US)
Provider EZRI-36323 - Ezri Inc, US
Data source: whois (0.4s)

Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.

Why this matters

Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 129 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
112 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
2 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
11 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
129 ms
Total Time Total request time from DNS lookup through full response.
129 ms

Connection waterfall

DNS Lookup 112 ms TCP Connect 2 ms TLS Handshake 11 ms Server Processing 4 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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