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https://hackernoon.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
98
GRADE
A+
FIX
0
REVIEW
1
PASS
8
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
8 PASS 1 REVIEW
B
TLS Certificate Expiry & Recommendations
89 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

89
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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
A+
DNS Records
3 A records, 29 ms lookup
PASS
3 A records, 29 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 104.26.6.38, 172.67.71.52, 104.26.7.38
Info::
Has 3 IPv6 (AAAA) record(s)
Got: 2606:4700:20::ac43:4734, 2606:4700:20::681a:726, 2606:4700:20::681a:626
Info::
2 nameserver(s) configured
Got: guy.ns.cloudflare.com, amber.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: 29 ms
Got: 29 ms
A104.26.6.38, 172.67.71.52, 104.26.7.38
AAAA2606:4700:20::ac43:4734, 2606:4700:20::681a:726, 2606:4700:20::681a:626
CNAME
NSguy.ns.cloudflare.com, amber.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt4.aspmx.l.google.com
10 alt3.aspmx.l.google.com
TXT
google-site-verification=7aqV-Wg-4b7XP6nZ-1fJgy99deMYt25IGmNMgNkyh-g
google-site-verification=HjYAgK8epiMtfFdXbIMPc06DlKYY2TLMkNKHdk0cQOg
google-site-verification=cPes9_Ves7bHC7FfGrffokkXKfcWT2uj8tSggmcqHKw
google-site-verification=n6eghnywkeXvjG7fg4qNnqKCQHeGe0xEKm4w4bnrfSo
google-site-verification=DjivKoJC5rhQ6SCnkaz7UNujzmfYiLDPj4MItcKTf-I
_a98ocn0et97geuh0m89jzlvzaithp7r
google-site-verification=sUrVo6yL4KZutqwkH8Z7sKa90WL3nfC0dQnZ0oHOGMQ
SPF v=spf1 include:_spf.elasticemail.com include:mailgun.org include:google.com ~all
oogle-site-verification=L05iH9IcHzlJOVqwqO9_ey4GyLkQuFYNJFZx0981uzU
firebase=hackernoon-app
google-site-verification=F0i3VQ3IJaVJrc3xZSht0HiCB8V3Ex7PgFlGrRVf1RU
google-site-verification=UfqnQyZvvDmOON1yQuOZMfUuM21cLmV7aQpxCvgxrt4
facebook-domain-verification=5j1nypnwc4gm15smdd5kgavl7e5vet
google-site-verification=vf402pQd7CrurhiTJGwvX-GWi6oxjPk4UImos33JGbU
google-site-verification=MyIgILJ2cXXJDA0kx1_45SjwofgkTWyaSk66w8lTwy0
CAALookup not available with standard resolver
Resolved in 29 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
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://hackernoon.com

https://hackernoon.com

81 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://hackernoon.com20081 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700:20::ac43:4734, 2606:4700:20::681a:726, 2606:4700:20::681a:626
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:20::ac43:4734, 2606:4700:20::681a:726, 2606:4700:20::681a:626 Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 30 URLs
PASS
robots.txt present, sitemap with 30 URLs
Info::
robots.txt is present
Got: 1879 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 30 entries
Info::
Sitemap index with 30 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1879 B Sitemaps referenced 2 User-agents Amazonbot, Applebot-Extended, Bytespider, CCBot, ClaudeBot, CloudflareBrowserRenderingCrawler, meta-externalagent, *, Google-Extended, GPTBot Blocking No — crawling allowed
# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a Content-Signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a Content-Signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a Content-Signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via Content-Signal with respect to the corresponding use.

# The content signals and their meanings are:

# search:   building a search index and providing search results (e.g., returning
#           hyperlinks and short excerpts from your website's contents). Search does not
#           include providing AI-generated search summaries.
# ai-input: inputting content into one or more AI models (e.g., retrieval
#           augmented generation, grounding, or other real-time taking of content for
#           generative AI search answers).
# ai-train: training or fine-tuning AI models.

# ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF
# RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT
# AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET.

# BEGIN Cloudflare Managed content

User-agent: *
Content-Signal: search=yes,ai-train=no
Allow: /

User-agent: Amazonbot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: CloudflareBrowserRenderingCrawler
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: meta-externalagent
Disallow: /

# END Cloudflare Managed Content

Sitemap: https://hackernoon.com/sitemap.xml
Sitemap: https://hackernoon.com/startups/sitemap.xml


User-agent: *
Allow: /*

Disallow: /api/*

A
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Warning::
HTTP→HTTPS redirect uses 302 instead of 301
Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

308https://www.hackernoon.com/
200https://hackernoon.com/

HTTP → HTTPS

308http://hackernoon.com/ https://hackernoon.com/

Use 301 (permanent) instead of 302 (temporary)

A+
Domain Intelligence
hackernoon.com — via NameCheap, Inc., 10 years, 2 months old
PASS
hackernoon.com — via NameCheap, Inc., 10 years, 2 months old
Info::
Domain registered until Apr 3, 2029 (3 years 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: NameCheap, 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

1023 days

April 3, 2029

SSL certificate

89 days

Issued by Google Trust Services

Domain age

10 years, 2 months

Registered April 3, 2016

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:20::681a:626

Registrar

NameCheap, 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 NameCheap, Inc.
Created April 3, 2016 (10 years, 2 months ago)
Expires April 3, 2029 (3 years)
Last Updated April 13, 2026
Name Servers amber.ns.cloudflare.com, guy.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:20::681a:626
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 115 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
30 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
17 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
23 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
111 ms
Total Time Total request time from DNS lookup through full response.
115 ms

Connection waterfall

DNS Lookup 30 ms TCP Connect 17 ms TLS Handshake 23 ms Server Processing 41 ms Content Transfer 4 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9eceb4a35f7c06b2-CDG
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9eceb4a35f7c06b2-CDG
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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