Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
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.
CTLS Certificate Expiry & RecommendationsAction23 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Renew certificate — 23 days remaining
- 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
ADNS Records1 A records, 209 ms lookupPASS
| A | 18.209.206.50 |
| AAAA | — |
| CNAME | — |
| NS | ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com |
| MX | 0 edelman-com.mail.protection.outlook.com |
| TXT | MS=ms71800639 7414xfdtz7hj3sjq82ksf04llmz8z1gr d365mktkey=1wxqximf616ewk9qi4fd3v1bn apple-domain-verification=XZes0WBNTgOLxwos tA-3Q1plrvR-PtjQFS84JDauDcVgQNNoVG1DK-576bY canva-site-verification=ZdIl7G2SiSIw3gpY_mossw lucidlink-verification=QCW68K2W3NQBD3W8JKHPPJVYER astro-domain-verification=cm7kjalzw1o1c01lrz1aqafkz logmein-verification-code=lPkh11faLaIUHVp6mytbf3cOe elevenlabs=bZGx1ut1NGbfUVs1_72Lj_Pdd4Rd3JZiQFCWzpWp0Z0 openai-domain-verification=dv-RNCNbgEKc2Ht6TANVbGvvr10 adobe-sign-verification=f4bb4eccebd8e9db849ea533e095a448 deepl-domain-verification=ce7c58aa61a14623b1c18db2fc0b2c23 cursor-domain-verification-216rm8=CBzoN3vAOv0PW2He5wcJ8piOn anthropic-domain-verification-eh8zwq=lgmcuHim2x9BXUtRsM9MBJ18b monday-com-verification=tA-3Q1plrvR-PtjQFS84JDauDcVgQNNoVG1DK-576bY google-site-verification=7CKu2g-eBfvc2PApJ7ulLvcyihKlnCSiWSa1P20Ahzk google-site-verification=QbNv5GwGwQ7xj6KDfaDz0sYExlflI21XJq32ZVJlZug box-domain-verification=2a585113fac147af68fdec58e2d158833fda4ae49fd29eb7aed321ee... oTTEVinqQruciNkznkyETjkumMWAYbIH6cqBnuilzSdphJTVQ8WAl9i8PjYMwtmQKhJ6soiiZBvAB3ea... atlassian-domain-verification=n31parGeIWvBOmFsyCAREZC2ddqtnBXvH2Q1ADRXBIw7NcaJlj... SPF v=spf1 ip4:8.30.236.205 ip4:192.65.156.141 ip4:192.65.156.132 include:spf.protec... |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
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.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
ARedirect Chain1 redirect(s), 671 ms totalPASS
https://edelman.com
578 ms · HTTP/1.1
https://www.edelman.com/
93 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://edelman.com | 301 | 578 ms | HTTP/1.1 | nginx |
| 2 | https://www.edelman.com/ | 403 | 93 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceedelman.com — via MarkMonitor Inc., 32 years, 3 months old, hosted on AWSPASS
346 days
June 28, 2027
23 days
Issued by DigiCert Inc
32 years, 3 months
Registered June 29, 1994
Not enabled
Protects against DNS spoofing
AWS
ASN AS14618
18.209.206.50
MarkMonitor Inc.
Expiry timeline
Recommended actions
- Renew the TLS certificate or verify auto-renewal is working
- 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