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.
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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 & Recommendations345 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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
A+DNS Records4 A records, 18 ms lookupPASS
| A | 18.239.36.25, 18.239.36.87, 18.239.36.103, 18.239.36.96 |
| AAAA | 2600:9000:20a0:1200:12:e08a:be80:93a1, 2600:9000:20a0:6e00:12:e08a:be80:93a1, 2600:9000:20a0:3800:12:e08a:be80:93a1, 2600:9000:20a0:b600:12:e08a:be80:93a1, 2600:9000:20a0:5c00:12:e08a:be80:93a1, 2600:9000:20a0:2800:12:e08a:be80:93a1, 2600:9000:20a0:b400:12:e08a:be80:93a1, 2600:9000:20a0:1600:12:e08a:be80:93a1 |
| CNAME | — |
| NS | dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net, ns01.ttddnnss.com, ns02.ttddnnss.com, ns03.ttddnnss.com, ns04.ttddnnss.com |
| MX | 0 smtp.secureserver.net 10 mailstore1.secureserver.net |
| TXT | 30d1bf7c-57ed-487a-9998-2f74ce7b0e2f 4e4b395d-044a-4e63-aa1a-f7bbdfd7e90a MS=ms72201950 SPF v=spf1 include:thetradedesk.com -all _globalsign-domain-verification=KnmR_y2aB1x3iRK_rmagVgzw08k-QcFdSE52Q1xHTX _globalsign-domain-verification=rchoGDWwF5orbqIOBKK13KAVOKC0iBc2IsfX2jzqEX |
| 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://adsrvr.org
319 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://adsrvr.org | 200 | 319 ms | HTTP/1.1 | AmazonS3 |
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceadsrvr.org — via MarkMonitor Inc., 16 years, 3 months oldPASS
590 days
March 29, 2028
345 days
Issued by GlobalSign nv-sa
16 years, 3 months
Registered March 29, 2010
Not enabled
Protects against DNS spoofing
Unknown
2600:9000:20a0:fe00:12:e08a:be80:93a1
MarkMonitor 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.
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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