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https://asm.org

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
88
GRADE
B
FIX
1
REVIEW
3
PASS
4
INFO
1
Probed from Singapore, Singapore
200 OK
Checks
9
4 PASS 3 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

C
HTTP Probe Timing
Action
Total 1659 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
2 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
245 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
247 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
1.10 s
Total Time Total request time from DNS lookup through full response.
1.66 s

Connection waterfall

DNS Lookup 2 ms TCP Connect 245 ms TLS Handshake 247 ms Server Processing 602 ms Content Transfer 564 ms
C
TLS Certificate Expiry & Recommendations
Action
28 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

28
days left
0d 30d 60d 90d+
Renew soon — under 30 days remaining

Recommended actions

  • Renew certificate — 28 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
A+
DNS Records
1 A records, 96 ms lookup
PASS
1 A records, 96 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 23.23.98.209
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns1.dnsbycomodo.net, ns2.dnsbycomodo.net
Info::
1 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: 96 ms
Got: 96 ms
A23.23.98.209
AAAA—
CNAME—
NSns1.dnsbycomodo.net, ns2.dnsbycomodo.net
MX
0 asmteam365.mail.protection.outlook.com
TXT
0ed1fe018a6066f24eb1824ca89b3c834437e31c9e
0ed1fe018ac79a8f1ba2f54f45937f2b
1g4lu8a8nsqc4sg167mu2ici74
21orm3n9gto7m5oukd12dng6nb
MS=ms13160843
ZOOM_verify_KKFzkHDMRJWcS5pFhAUWzw
ca3-84129b3e58bb410287c74489b488e9f2
ca3-da71195c29c84ce1b51386c94318236c
ca3-dc754b7db990480fb219adaf83c2429f
facebook-domain-verification=8f525ur4h034bfbo1xqrvzbv3i4p2p
google-site-verification=C-yHBkaxm75yixz8pQPyZYcbsLQFkB9-un7Km1aw3K4
google-site-verification=ipFIIcYII9rJz0TjvrEiduEqaLFxbD2WX1qutH79Z68
hgitfdamul21p8q0uiqsubv4qn
j5vh5h8dkeih2a7acvul3d9m4d
n6qog63enhljfmdsvhdpca9a7p
SPF v=spf1 include:_u.asm.org._spf.dmarcly.com -all
CAALookup not available with standard resolver
Resolved in 96 ms

Multiple A records provide failover if one server goes down.

Why this matters

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.

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://asm.org

https://asm.org

821 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://asm.org200821 msHTTP/1.1Microsoft-IIS/10.0
A
Crawlability
robots.txt present, no sitemap
PASS
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 482 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt references sitemap

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

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

robots.txt 200 OK
Size 482 B Sitemaps referenced 2 User-agents * Blocking No — crawling allowed
User-Agent: *

Allow: /

Disallow: /search?*

Disallow: /search/?*

Disallow: ?order=

Disallow: ?_gl=

Disallow: ?uh=

Disallow: ?order=

Disallow: ?Site=

Disallow: ?vvsrc=

Disallow: ?_zs=jkEsl&_zl=TqJ42

Disallow: ?utm_source=

Disallow: ?_ga=

Disallow: ?ref=

Disallow: ?source=

Disallow: login?returnUrl=

Disallow: ?Action=

Disallow: ?webcode=loginrequired

Disallow: ?returnUrl=

Sitemap: https://asm.org/sitemap.xml

Sitemap: https://journals.asm.org/sitemap-index-1.txt
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.asm.org/
200https://asm.org/

Preferred variant: non-www

HTTP → HTTPS

301http://asm.org/ → https://asm.org/

Consistent

Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

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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