http://wonk.sytes.net/76s/pratka2/2015.html

Infrastructure

· 16 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Madrid, Spain

200 OK

Checks

6 PASS 8 REVIEW 1 FIX

CDN & Delivery

Action

No CDN (document or assets)

FIX

No CDN (document or assets)

Neither the HTML document nor the page's subresources are served through an edge network. A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.

No CDN (document or assets)

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

DNSSEC

Unsigned (DNSSEC not deployed)

REVIEW

Unsigned (DNSSEC not deployed)

DNSSEC is not deployed

The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).

CAA Records

No CAA records (any CA may issue certificates)

REVIEW

No CAA records (any CA may issue certificates)

No CAA records published

Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.

Reverse DNS

1 PTR record(s) found (no cert data to match against)

REVIEW

1 PTR record(s) found (no cert data to match against)

PTR for 109.68.135.26: 109-68-135-26.cust.valoonet.fi

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

Crawlability

no robots.txt, no sitemap

REVIEW

no robots.txt, no sitemap

No robots.txt found

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

No sitemap.xml found

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

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

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.

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 No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

CDN Cache Observability

No CDN cache-status headers in the response

REVIEW

No CDN cache-status headers in the response

Without an X-Cache / CF-Cache-Status / X-Vercel-Cache / Age header, you can't tell from outside whether a request hit the cache or went to origin. Operationally important: enables debugging stale-content reports and verifying cache rules. Most managed CDN platforms emit at least one of these by default; absence often means the platform's diagnostic headers are stripped at an upstream proxy.

Operational Status Page

No status page link detected

REVIEW

No status page link detected

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.

Health Check Endpoint

No conventional health endpoint found

REVIEW

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.

DNS Records

1 A records, 31 ms lookup

PASS

1 A records, 31 ms lookup

Resolves to 1 IPv4 address(es)

Got: 109.68.135.26

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

No IPv6 (AAAA) records

No NS records found

No MX records — email not configured via DNS

No SPF record found in TXT records

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

DNS resolution time: 31 ms

Got: 31 ms

A	109.68.135.26
AAAA	—
CNAME	—
NS	—
MX	—
TXT	—
CAA	Lookup not available with standard resolver

Resolved in 31 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

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A+

Subdomain Takeover

No subdomain takeover risk detected

PASS

No subdomain takeover risk detected

No CNAME record present

A+

Multi-Resolver DNS Speed

Mean 14ms across 3 resolvers (spread 18ms)

PASS

Mean 14ms across 3 resolvers (spread 18ms)

Quad9: 2ms

Got: 2ms via 9.9.9.9:53

Google: 20ms

Got: 20ms via 8.8.8.8:53

Cloudflare: 20ms

Got: 20ms via 1.1.1.1:53

A+

Redirect Chain

No redirects — direct access

PASS

No redirects — direct access

Got: http://wonk.sytes.net/76s/pratka2/2015.html

http://wonk.sytes.net/76s/pratka2/2015.h...

118 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	http://wonk.sytes.net/76s/pratka2/2015.h...	200	118 ms	HTTP/1.1	Apache/2.4.18 (Ubuntu)

A+

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

PASS

www/non-www, trailing slash, HTTP→HTTPS

www / non-www

http://www.wonk.sytes.net/76s/pratka2/2015.html

200http://wonk.sytes.net/76s/pratka2/2015.html

Trailing Slash

404http://wonk.sytes.net/76s/pratka2/2015.html/

200http://wonk.sytes.net/76s/pratka2/2015.html

A+

HTTP Probe Timing

Total 201 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

29 ms

TCP Connect

55 ms

TLS Handshake

0 ms

Time to First Byte

146 ms

Total Time

202 ms

Connection waterfall

DNS Lookup 29 ms TCP Connect 55 ms TLS Handshake 0 ms Server Processing 62 ms Content Transfer 56 ms

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.