Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BCrawlabilityno robots.txt, no sitemapREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
A sitemap helps search engines discover and index your pages more efficiently.
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
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations44 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Submit your domain to hstspreload.org to be added to the Chrome preload list
- 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 Records2 A records, 45 ms lookupPASS
| A | 104.18.32.122, 172.64.155.134 |
| AAAA | 2a06:98c1:3103::ac40:9b86, 2a06:98c1:3108::6812:207a |
| CNAME | — |
| NS | ashe.skillshare.com, garen.skillshare.com |
| MX | 10 aspmx.l.google.com 20 alt1.aspmx.l.google.com 30 alt2.aspmx.l.google.com 40 aspmx2.googlemail.com 50 aspmx3.googlemail.com 50 aspmx5.googlemail.com 50 aspmx4.googlemail.com |
| TXT | h1-domain-verification=J1qQPbBWpbBxGVL3i3h1dpw2rX1NwHEZhnWeRNNP5L9qB2DX 9p1q7gjsjf6jgqmkdvbdxhxch33lxzsv fw8mkvj2p2lgsk7crsrgylmvpzf0fkkw facebook-domain-verification=va9wk46fanagqpr4rc6sp4d3gap007 mixpanel-domain-verify=739bd2fb-b682-4acf-9689-e94b74a61621 jamf-site-verification=jsRO5e76-EWTHTbtESgo9g SPF v=spf1 include:_spf0.skillshare.com include:_spf1.skillshare.com include:_spf2.s... qyylpgj14chmtmds8wgz7j8lqwrd44tt miro-verification=2accb01b1b638f37ee0cd64452e2faaa57e1cdf6 amazonses:FA3mpwGhZzBmEIrp3iQXIXa3+umrH8ce03vBPry8tuI= anthropic-domain-verification-0j2hh2=VDsV2bFDu3c0IZWFsXlG1WQ4h firebase=skillshare-creator-dev openai-domain-verification=dv-98OuGQNGSB3R75FCYqMmzHqw apple-domain-verification=Hb38JzhNUvqf3hR2 google-site-verification=DshzQEv8w03dqk3NErt1hlkBaXsKdTMaUfBY1J-8Wic atlassian-domain-verification=caa1SXVOa/jn5JVpUdP/OCpP1t9l1rz9ikhEsdPLJYGgYWquY6... google-site-verification=mcHpWbpzXVe4BOFgp5ijuXXqIf7OMoH1Z7ctm2mlBDc |
| 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.
ARedirect Chain1 redirect(s), 242 ms totalPASS
https://skillshare.com
152 ms · HTTP/1.1
https://www.skillshare.com/
90 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://skillshare.com | 301 | 152 ms | HTTP/1.1 | cloudflare |
| 2 | https://www.skillshare.com/ | 403 | 90 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (16 ms)PASS
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceskillshare.com — via Squarespace Domains II LLC, 23 years oldPASS
737 days
July 25, 2028
44 days
Issued by Google Trust Services
23 years
Registered July 25, 2003
Not enabled
Protects against DNS spoofing
Unknown
2a06:98c1:3103::ac40:9b86
Squarespace Domains II LLC
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