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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
5
INFO
0
Probed from Madrid, Spain
200 OK
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
Info::
www/non-www redirect configured correctly (preferred: non-www)
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

302https://www.archive.org/
200https://archive.org/

Preferred variant: non-www

HTTP → HTTPS

200http://archive.org/

HTTP version does not redirect to HTTPS

B
TLS Certificate Expiry & Recommendations
299 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

299
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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, 160 ms lookup
PASS
1 A records, 160 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 207.241.224.2
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
6 nameserver(s) configured
Got: ns1.archive.org, ns-global.kjsl.com, ns0036.secondary.cloudflare.com, ns0208.secondary.cloudflare.com, ns2.archive.org, ns3.archive.org
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: 160 ms
Got: 160 ms
A207.241.224.2
AAAA—
CNAME—
NSns1.archive.org, ns-global.kjsl.com, ns0036.secondary.cloudflare.com, ns0208.secondary.cloudflare.com, ns2.archive.org, ns3.archive.org
MX
100 smtp.google.com
TXT
MS=ms84122558
t44orrgdmehs56t0qtiuri47io
SPF v=spf1 a mx ip4:207.241.224.6/32 ip4:207.241.224.2/32 a:bromkins.net include:spf...
google-site-verification=jG-1u9Cab2yUEOgG_HdB1DuUZ03oaNIPU93Vp-nnJLw
brave-ledger-verification=helloarchive.org
google-site-verification=ZkKkXmzrzbWYiTTj_Js7OokIcxjveE89BiwhcHXCq-g
atlassian-domain-verification=AayvCFYrHZxErANHNVvoXR/RxRkCrZHgMCRDL2lfbyF3JFND0I...
8ptfmp7ldsrm99l4h8faqrjo17
CAALookup not available with standard resolver
Resolved in 160 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://archive.org

https://archive.org

452 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://archive.org200452 msHTTP/1.1nginx/1.24.0
A+
Crawlability
robots.txt present, sitemap with 1421 URLs
PASS
robots.txt present, sitemap with 1421 URLs
Info::
robots.txt is present
Got: 238 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1421 entries
Info::
Sitemap index with 1421 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 238 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed

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

##############################################
#
# Welcome to the Internet Archive!
#
##############################################

User-agent: *
Disallow: /control/
Disallow: /report/
sitemap.xml 200 OK
Type Sitemap Index URLs 1421 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
archive.org — via easyDNS Technologies Inc., 30 years, 9 months old, hosted on INTERNET-ARCHIVE - Internet Archive, US
PASS
archive.org — via easyDNS Technologies Inc., 30 years, 9 months old, hosted on INTERNET-ARCHIVE - Internet Archive, US
Info::
Domain registered until Dec 13, 2030 (4 years, 8 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: easyDNS Technologies 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: INTERNET-ARCHIVE - Internet Archive, US
Got: AS7941
Domain expiry

1579 days

December 13, 2030

SSL certificate

299 days

Issued by GoDaddy.com, Inc.

Domain age

30 years, 9 months

Registered December 14, 1995

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

INTERNET-ARCHIVE - Internet Archive, US

ASN AS7941

207.241.224.2

Registrar

easyDNS Technologies Inc.

Unlocked 6 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 easyDNS Technologies Inc.
Created December 14, 1995 (30 years, 9 months ago)
Expires December 13, 2030 (4 years, 8 months)
Last Updated July 8, 2025
Name Servers ns3.archive.org, ns1.archive.org, ns2.archive.org, ns-global.kjsl.com, ns0036.secondary.cloudflare.com, ns0208.secondary.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 207.241.224.2
ASN AS7941 (INTERNET-ARCHIVE - Internet Archive, US)
Provider INTERNET-ARCHIVE - Internet Archive, US
Data source: rdap (0.8s)

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 506 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
17 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
153 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
158 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
507 ms
Total Time Total request time from DNS lookup through full response.
507 ms

Connection waterfall

DNS Lookup 17 ms TCP Connect 153 ms TLS Handshake 158 ms Server Processing 178 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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