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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 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

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.medpagetoday.com/
200https://medpagetoday.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://medpagetoday.com/ https://medpagetoday.com:443/

Consistent

B
TLS Certificate Expiry & Recommendations
106 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

106
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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
2 A records, 143 ms lookup
PASS
2 A records, 143 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 54.236.221.201, 13.219.135.160
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-354.awsdns-44.com, ns-1442.awsdns-52.org, ns-1625.awsdns-11.co.uk, ns-924.awsdns-51.net
Info::
5 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: 143 ms
Got: 143 ms
A54.236.221.201, 13.219.135.160
AAAA
CNAME
NSns-354.awsdns-44.com, ns-1442.awsdns-52.org, ns-1625.awsdns-11.co.uk, ns-924.awsdns-51.net
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 aspmx3.googlemail.com
10 aspmx2.googlemail.com
TXT
adobe-idp-site-verification=cd8dab640ab786a9457c8757f4188cd682dd687a694d1d9c251e...
onetrust-domain-verification=8881bc01e7e0412cad34d32fc0145175
iContact1868438
_globalsign-domain-verification=f-B_7ErtvSe_2e1SkhSsTab6DQA-AVd2vcvY3gqskQ
google-site-verification=o9Cc96uw3KJMePLolKG-TaGic7flrBYu2FjuPPs2_vU
MS=ms74398949
google-site-verification=lUiR109Fr7wCImumZGxhwFOVpN6NoxbM-gVms6DPZ9w
google-site-verification=POOfOsJMEB5Ri-U6Mo39E50MVbZ5lI_ToYpQsVUlk04
google-site-verification=SODhr8ecRnsxj4j2lGDk90I971LOOi7nzHBX_6WyPxs
google-site-verification=vw3kHoAblBxht2HcQBeUC2t1TpT7g2zZl6o9SA4KnKI
atlassian-domain-verification=QUsZX4LdPWTYZgx09JhShFot27EJnUl/5CyxXFsiGebXl2QD8F...
docusign=24332464-d32b-451f-885a-34ef99704247
facebook-domain-verification=rdkk3wmnfq3vskkm60xy9363wcfwz1
knowbe4-site-verification=f8a0eecde40ecb172ead956570d9179c
SPF v=spf1 include:_spf.google.com include:amazonses.com include:_spf.salesforce.com...
figma-domain-verification=ab02dae66e56531cc42e8f3ccb45f9c32e96ba95854cd97d30bf95...
_globalsign-domain-verification=ddgpRWXMmBK6n6pJf9ZbSOxdTxCpSUkpoHqzFKlYna
anthropic-domain-verification-nrbcdk=AgOvAe4kMHRePalLaPL7TFAmE
tollbit-domain-verification=927113b9a3f6ab22b17f1108bc995776d32c06b6fb41b6a9fcdd...
facebook-domain-verification=qin59bzanvkwqtsgtaeq228wxcklp5
asv=26bebc6c9c16d8228da462c6e4a0406d
google-site-verification=3MHmY5h0pvTFzEFxl8v7z7Q2Qin8p7qyyrCPWtTUJpY
CAALookup not available with standard resolver
Resolved in 143 ms

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
1 redirect(s), 918 ms total
PASS
1 redirect(s), 918 ms total
Info::
Single redirect
Got: https://medpagetoday.com → https://www.medpagetoday.com/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 918 ms total
Got: 918 ms

https://medpagetoday.com

396 ms · HTTP/1.1

301

https://www.medpagetoday.com/

522 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://medpagetoday.com301396 msHTTP/1.1Varnish
2https://www.medpagetoday.com/200522 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 5 URLs
PASS
robots.txt present, sitemap with 5 URLs
Info::
robots.txt is present
Got: 3583 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 5 entries
Info::
Sitemap index with 5 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 3583 B Sitemaps referenced 3 User-agents HTTrack, Manus-User, Omgili, Omgilibot, PanguBot, PetalBot, *, bigsur.ai, GROK-2, meta-externalagent, PeopleInc-DCipher-Scraper/1.1.0, Perplexity-User, SeekrBot, Wrtn, Amazonbot, Claude-SearchBot, DDM-DCipher/1.0.7, iaskspider, Kunato, laion-huggingface-processor, Peer39_crawler/1.0, YouBot, Ai2Bot-Dolma, ClaudeBot, Claude-Web, LCC, xAI-Web-Crawler, Cloudflare-AutoRAG, SemrushBot-OCOB, DeepSeekBot, DDM*, Novellum AI Crawl, Channel3Bot, Diffbot, MistralAI-User, SBIntuitionsBot, Timpibot, Anomura, "008", mistral.ai, OAI-SearchBot, SemrushBotSwa, Bytespider, ICC-Crawler, Nutch, Ai2Bot-DeepResearchEval, atlassian-bot, Big Sur AI, ChatGLM-Spider, ChatGPT-User, DuckAssistBot, Kangaroo Bot, QualifiedBot, Scrapy, TavilyBot, Velen Crawler, AI2Bot, anthropic-ai, LinerBot, Magpie-crawler, PerplexityBot, Factset_spyderbot, ShapBot, AddSearchBot, AmazonBuyForMe, Datenbank Crawler, Poggio-Citations, meta-webindexer, Applebot-Extended, CCBot, Claude-User, cohere-ai, Cotoyogi, Crawl4AI, ImagesiftBot, netEstate Imprint Crawler, AwarioSmartBot, Devin, iAsk, meta-externalfetcher, NovaAct, Webzio-Extended, VelenPublicWebCrawler, cohere-training-data-crawler, GPTBot, Offline Explorer, ICC Crawler, LINER Bot, LinkupBot, Spider, TwinAgent, Bravebot, KlaviyoAIBot, Applebot, ZanistaBot, Anchor Browser, Brandwatch, Echobot Bot, AwarioRssBot, FacebookBot Blocking No — crawling allowed
# Ziff Davis content is made available for your non-commercial use subject to our
# Terms of Use here: https://www.medpagetoday.com/about/terms
# Use of any robot, crawler, or other tool to scrape, harvest, extract, or retrieve any content on
# this website using automated means is prohibited without written permission from Ziff Davis.
# Prohibited uses include but are not limited to:
# (1) text and data mining under Art. 4 of the EU Directive on Copyright in the Digital Single
# Market;
# (2) development or operation of artificial intelligence or machine learning software or
# databases, including by training, fine-tuning, embedding, and retrieval-augmented generation;
# (3) creating data sets containing our content or sharing it with others; and
# (4) any commercial purposes.
# Contact licensing@ziffdavis.com for assistance.

Sitemap: https://www.medpagetoday.com/sitemap-index.xml
Sitemap: https://www.medpagetoday.com/videositemap.xml
Sitemap: https://www.medpagetoday.com/latest-newssitemap.xml

User-agent: *
Disallow: /userInfo
Disallow: /trigger/checkv2
Disallow: /contentfeed/getdata?type=synopsi
Disallow: /auth

User-agent: "008"
User-agent: AddSearchBot
User-agent: AI2Bot
User-agent: Ai2Bot-Dolma
User-agent: Amazonbot
User-agent: AmazonBuyForMe
User-agent: anthropic-ai
User-agent: Applebot
User-agent: Applebot-Extended
User-agent: AwarioRssBot
User-agent: AwarioSmartBot
User-agent: bigsur.ai
User-agent: Bytespider
User-agent: CCBot
User-agent: Channel3Bot
User-agent: ChatGLM-Spider
User-agent: ChatGPT-User
User-agent: ClaudeBot
User-agent: Claude-SearchBot
User-agent: Claude-User
User-agent: Claude-Web
User-agent: cohere-ai
User-agent: cohere-training-data-crawler
User-agent: Cotoyogi
User-agent: Crawl4AI
User-agent: Datenbank Crawler
User-agent: DeepSeekBot
User-agent: Devin
User-agent: DDM-DCipher/1.0.7
User-agent: DDM*
User-agent: Diffbot
User-agent: DuckAssistBot
User-agent: FacebookBot
User-agent: GPTBot
User-agent: GROK-2
User-agent: HTTrack
User-agent: iAsk
User-agent: iaskspider
User-agent: ICC-Crawler
User-agent: ImagesiftBot
User-agent: Kangaroo Bot
User-agent: Kunato
User-agent: laion-huggingface-processor
User-agent: LCC
User-agent: LinerBot
User-agent: LinkupBot
User-agent: Magpie-crawler
User-agent: meta-externalagent
User-agent: meta-externalfetcher
User-agent: Manus-User
User-agent: mistral.ai
User-agent: MistralAI-User
User-agent: netEstate Imprint Crawler
User-agent: NovaAct
User-agent: Nutch
User-agent: OAI-SearchBot
User-agent: Offline Explorer
User-agent: Omgili
User-agent: Omgilibot
User-agent: PanguBot
User-agent: Peer39_crawler/1.0
User-agent: PeopleInc-DCipher-Scraper/1.1.0
User-agent: PerplexityBot
User-agent: Perplexity-User
User-agent: PetalBot
User-agent: Poggio-Citations
User-agent: QualifiedBot
User-agent: SBIntuitionsBot
User-agent: Scrapy
User-agent: SeekrBot
User-agent: Spider
User-agent: TavilyBot
User-agent: Timpibot
User-agent: TwinAgent
User-agent: Velen Crawler
User-agent: Webzio-Extended
User-agent: Wrtn
User-agent: xAI-Web-Crawler
User-agent: YouBot
User-agent: ZanistaBot
User-agent: Ai2Bot-DeepResearchEval
User-agent: Anchor Browser
User-agent: Anomura
User-agent: atlassian-bot
User-agent: Big Sur AI
User-agent: Brandwatch
User-agent: Bravebot
User-agent: Cloudflare-AutoRAG
User-agent: Echobot Bot
User-agent: Factset_spyderbot
User-agent: ICC Crawler
User-agent: KlaviyoAIBot
User-agent: LINER Bot
User-agent: meta-webindexer
User-agent: Novellum AI Crawl
User-agent: SemrushBot-OCOB
User-agent: SemrushBotSwa
User-agent: ShapBot
User-agent: VelenPublicWebCrawler
Disallow: /
A+
Domain Intelligence
medpagetoday.com — via CSC Corporate Domains, Inc., 22 years, 8 months old, hosted on AWS
PASS
medpagetoday.com — via CSC Corporate Domains, Inc., 22 years, 8 months old, hosted on AWS
Info::
Domain registered until Dec 2, 2029 (3 years, 7 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: CSC Corporate Domains, Inc.
Warning::
Registrar lock is NOT enabled
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.
Info::
Hosting: AWS
Got: AS14618
Domain expiry

1266 days

December 2, 2029

SSL certificate

106 days

Issued by Amazon

Domain age

22 years, 8 months

Registered December 2, 2003

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS14618

13.219.135.160

Registrar

CSC Corporate Domains, Inc.

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar CSC Corporate Domains, Inc.
Created December 2, 2003 (22 years, 8 months ago)
Expires December 2, 2029 (3 years, 7 months)
Last Updated August 21, 2025
Name Servers ns-1442.awsdns-52.org, ns-1625.awsdns-11.co.uk, ns-354.awsdns-44.com, ns-924.awsdns-51.net
DNSSEC Not enabled
Hosting
IP Address 13.219.135.160
ASN AS14618 (AMAZON-AES - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

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.

Why this matters

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

A
HTTP Probe Timing
Total 437 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
47 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
96 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
195 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
437 ms
Total Time Total request time from DNS lookup through full response.
437 ms

Connection waterfall

DNS Lookup 47 ms TCP Connect 96 ms TLS Handshake 195 ms Server Processing 99 ms Content Transfer 0 ms
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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