Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BTLS Certificate Expiry & Recommendations89 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
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 Records3 A records, 29 ms lookupPASS
| A | 104.26.6.38, 172.67.71.52, 104.26.7.38 |
| AAAA | 2606:4700:20::ac43:4734, 2606:4700:20::681a:726, 2606:4700:20::681a:626 |
| CNAME | — |
| NS | guy.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 |
| CAA | Lookup not available with standard resolver |
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
A+Redirect ChainNo redirects — direct accessPASS
https://hackernoon.com
81 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://hackernoon.com | 200 | 81 ms | HTTP/1.1 | cloudflare |
A+IPv6 ReadinessIPv6 reachable (17 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 30 URLsPASS
# 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/*
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
- https://hackernoon.com/sitemaps/sitemap-...
AURL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
A+Domain Intelligencehackernoon.com — via NameCheap, Inc., 10 years, 2 months oldPASS
1023 days
April 3, 2029
89 days
Issued by Google Trust Services
10 years, 2 months
Registered April 3, 2016
Not enabled
Protects against DNS spoofing
Unknown
2606:4700:20::681a:626
NameCheap, Inc.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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