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https://krimpenaandenijssel.nl

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
94
GRADE
A
FIX
0
REVIEW
5
PASS
11
INFO
1
Probed from Madrid, Spain
200 OK
Checks
17
11 PASS 5 REVIEW
C
Reverse DNS
Action
0/2 IPs match cert SAN
REVIEW
0/2 IPs match cert SAN
Info::
PTR lookup failed for 178.22.63.101: lookup 178.22.63.101: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2a00:1e28:3:a027::1: lookup 2a00:1e28:3:a027::1: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
B
TLS Certificate Expiry & Recommendations
48 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

48
days left
0d 30d 60d 90d+

Recommended actions

  • 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
C
CDN & Delivery
Action
Assets on CDN77 (host cdn-eu.readspeaker.com, 3 assets); document served directly from origin
REVIEW
Assets on CDN77 (host cdn-eu.readspeaker.com, 3 assets); document served directly from origin
Warning::
Document not behind existing CDN (CDN77 serves the assets)
The page's subresources are delivered by CDN77 (cdn-eu.readspeaker.com, 3 assets), but the HTML document itself comes straight from the origin. Routing the document through the CDN already in use is the cheapest latency win available here -- the provider relationship, the certificate and the config already exist. A short edge TTL with stale-while-revalidate suits HTML that changes often; if the response is genuinely per-user, edge TLS termination alone still removes a full round trip from every visitor's first byte.
Got: delegation 1630983047.rsc.cdn77.org
Info::
Assets on CDN77: cdn-eu.readspeaker.com (assets: 3)
Got: delegation 1630983047.rsc.cdn77.org
Warning: Assets on a CDN, document is not: CDN77
Document origin not attributed

Asset hosts on a CDN

  • cdn-eu.readspeaker.com — CDN77 · assets: 3

Other asset hosts

  • cdnjs.cloudflare.com — assets: 2 · below probe threshold
  • fonts.bunny.net — assets: 2 · below probe threshold
  • www.googletagmanager.com — assets: 2 · below probe threshold

The heavy static files already ride an edge network, but every visitor still waits on the origin for the HTML itself. Routing the document through the same CDN is usually a config change rather than a migration: a short edge TTL with stale-while-revalidate for cacheable HTML, or edge TLS termination alone when the response is per-user.

B
Operational Status Page
No status page link detected
REVIEW
No status page link detected
Info::
No operational status page link detected
Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.
B
Health Check Endpoint
No conventional health endpoint found
REVIEW
No conventional health endpoint found
Info::
No conventional health endpoint found
Health endpoints (/health, /healthz, /status, /ping, /api/health) let uptime monitors, load balancers, and orchestration systems (Kubernetes, ECS, Fly.io) verify the service is alive. Marketing sites and small services often skip them legitimately; flagged as Info, not a failure. Probe results: /api/health: 404, /health: 404, /healthz: 404, /ping: 404, /status: 404.
A+
DNS Records
1 A records, 76 ms lookup
PASS
1 A records, 76 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 178.22.63.101
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2a00:1e28:3:a027::1
Info::
3 nameserver(s) configured
Got: ns2.intermax.nl, ns1.intermax.nl, ns3.intermax.eu
Info::
1 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 76 ms
Got: 76 ms
A178.22.63.101
AAAA2a00:1e28:3:a027::1
CNAME—
NSns2.intermax.nl, ns1.intermax.nl, ns3.intermax.eu
MX
0 Krimpenaandenijssel-nl.p-v1.mx.microsoft
TXT
_oxmuf1vbvkpajhndzxfhlyyll7xrtow
_b372ls6dnykrabxunx4wfjgvq4kv1o6
_dhlam1d3i3gir8l419mnutp5fyvz82k
_oaxnmdlum9o4fmdgl82jg2pg2yo0rwf
knowbe4-site-verification=c1bc8b3d02c66f2f745d55e99bfdd405
brevo-code:3ff469f7d4862443a10fe4fd47070b3c
apple-domain-verification=mz0B8HOeGE2SoLsb
RJDhBHBcl5jE49NQWqqBtZvuGNtIwaOSQYkaUkya340H4QPhq28anoOzx8Z9Qq6c
_nnq4vau0kbo0vzijgcpy8ikyceud3lt
_jh5g3sv46cz0ehu56y7fw2h1mnnleav
e2f4e6cd1890784e5d4c5acab1ff9fd22dee82bf093a94986252b9db2e442165
v=NTA7516-1;startdate=2019-06;enddate=2029-09;provider=bastionic;ntamx=10 mx.bas...
have-i-been-pwned-verification=dweb_oaz6q8d0fk0cqbuzwog91jsc
_llt1noke5youhmn1jp39kqzycroku4u
4b38a6a85e96bce26e3d94b8a008ec77
_fv2xont9j36bmsadelmjt06fi2bsxlg
_5erinzxgr2s8wqc0bn6ec0sin7gafdu
_3kmo9je68208qwwv9dfyimu6qoaga5y
autodesk-domain-verification=XR2XQ44fFCp6QnWU3l9s
pdcrEWvJysi1Dau3r0QY06LyFCkAxgTdaRV7rGOwkxzA6828DTxcNPf6Px3ddoWI
_0dnn2no0m7bxahpft3bw4906r5ex1aq
_r3j9r8pdevu2m39u4soiehtkrh2jb6e
_41k1boz30oprgxa8d1imbef3g8egoko
ffd1e9b95b352de1d50a88b391d91e40b6126398f1cf2b0fbae3c2a893cb0ee0
_p1d4zbqz427yowpatp4e9jp7eh7z16g
6SBnwGeGQxI5uj6qBRdJdWho9jRNhOqW9VvEB5SutngKPgC3xeMxPu8dctbNvDDY
_t1g3wgcxowv61w53pjr6054m76ln7e9
bastion365-domain-validation=ce676b90a1df7
ms-domain-verification=69f30d0a-b38d-44b7-81bf-e675317c9bcb
SPF v=spf1 ip4:185.181.140.135 ip4:194.150.14.85 ip4:168.245.121.45 ip4:92.42.235.1/...
6r6922kb1rtp66htcc0vxwjf8pky04c0
_v0zmloeirkx0b2d781cenx66om8m3qs
CAALookup not available with standard resolver
Resolved in 76 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

A+
Subdomain Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
No CNAME record present
A+
DNSSEC
Signed and validating
PASS
Signed and validating
Info::
DNSSEC fully signed and chain validates (RSASHA256)
A
CAA Records
issue: awstrust.com, certsign.ro, digicert.com, letsencrypt.org | issuewild: digicert.com
PASS
issue: awstrust.com, certsign.ro, digicert.com, letsencrypt.org | issuewild: digicert.com
Info::
CAA issue tag present — authorized CA(s): awstrust.com, certsign.ro, digicert.com, letsencrypt.org
Info::
No CAA iodef tag — won't be notified of failed issuance attempts
Add `0 iodef "mailto:security@example.com"` to receive notifications when a CA refuses issuance because it doesn't match your CAA policy. Useful signal for detecting issuance attempts by unauthorized CAs.
A+
Multi-Resolver DNS Speed
Mean 40ms across 3 resolvers (spread 33ms)
PASS
Mean 40ms across 3 resolvers (spread 33ms)
Info::
Cloudflare: 28ms
Got: 28ms via 1.1.1.1:53
Info::
Google: 31ms
Got: 31ms via 8.8.8.8:53
Info::
Quad9: 61ms
Got: 61ms via 9.9.9.9:53
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://krimpenaandenijssel.nl

https://krimpenaandenijssel.nl

111 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://krimpenaandenijssel.nl200111 msHTTP/1.1
A+
IPv6 Readiness
IPv6 reachable (26 ms)
PASS
IPv6 reachable (26 ms)
Info::
IPv6 is configured and reachable at 2a00:1e28:3:a027::1
Got: 26 ms connect
IPv6 Ready
AAAA Records 2a00:1e28:3:a027::1 Connection Reachable (26 ms)
A+
Crawlability
robots.txt present, sitemap with 9 URLs
PASS
robots.txt present, sitemap with 9 URLs
Info::
robots.txt is present
Got: 492 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 9 entries
Info::
Sitemap index with 9 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 492 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *

Disallow: /wp/wp-admin/
Disallow: /?s=
Disallow: /search/
Disallow: /wp-login.php
Disallow: /wp-json/
Disallow: /*?*srsltid
Disallow: /*add-to-cart=*
Disallow: /*?filter_*
Disallow: /*?query_type_*
Disallow: /*?min_price*
Disallow: /*?max_price*

Allow: /wp-admin/admin-ajax.php

Crawl-delay: 10

# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://krimpenaandenijssel.nl/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK
sitemap.xml 200 OK
Type Sitemap Index URLs 9 entries Valid XML Yes
Child Sitemaps:
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 redirects to HTTPS permanently
Got: HTTP 301

www / non-www

301https://www.krimpenaandenijssel.nl/
200https://krimpenaandenijssel.nl/

Preferred variant: non-www

HTTP → HTTPS

301http://krimpenaandenijssel.nl/ → https://krimpenaandenijssel.nl/

Consistent

A+
HTTP Probe Timing
Total 164 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
49 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
27 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
31 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
137 ms
Total Time Total request time from DNS lookup through full response.
164 ms

Connection waterfall

DNS Lookup 49 ms TCP Connect 27 ms TLS Handshake 31 ms Server Processing 30 ms Content Transfer 27 ms
A+
CDN Cache Observability
Cache state: HIT
PASS
Cache state: HIT
Info::
CDN cache state observable via 3 header(s)
Got: age=9142, x-cache=HIT, x-cache-hits=756
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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