Infrastructure

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Sao Paulo, Brazil

200 OK

Checks

6 PASS 11 REVIEW

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

Action

0/4 IPs match cert SAN

REVIEW

0/4 IPs match cert SAN

PTR lookup failed for 104.21.79.97: lookup 104.21.79.97: 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.

PTR lookup failed for 172.67.169.233: lookup 172.67.169.233: 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.

PTR lookup failed for 2606:4700:3034::ac43:a9e9: lookup 2606:4700:3034::ac43:a9e9: 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.

PTR lookup failed for 2606:4700:3036::6815:4f61: lookup 2606:4700:3036::6815:4f61: 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.

Multi-Resolver DNS Speed

Mean 67ms across 3 resolvers (spread 118ms)

REVIEW

Mean 67ms across 3 resolvers (spread 118ms)

Cloudflare: 2ms

Got: 2ms via 1.1.1.1:53

Quad9: 80ms

Got: 80ms via 9.9.9.9:53

Google: 120ms

Got: 120ms via 8.8.8.8:53

URL Variants

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

REVIEW

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

www/non-www redirect configured correctly (preferred: non-www)

HTTP version does not redirect to HTTPS

Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

301https://www.rewordsai.app/

200https://rewordsai.app/

Preferred variant: non-www

HTTP → HTTPS

200http://rewordsai.app/

HTTP version does not redirect to HTTPS

HTTP Probe Timing

Total 1184 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

REVIEW

DNS Lookup

275 ms

TCP Connect

1 ms

TLS Handshake

8 ms

Time to First Byte

1.18 s

Total Time

1.18 s

Connection waterfall

DNS Lookup 275 ms TCP Connect 1 ms TLS Handshake 8 ms Server Processing 896 ms Content Transfer 4 ms

TLS Certificate Expiry & Recommendations

88 days until leaf cert expires — 3 issues to address

REVIEW

Certificate validity

days left

0d 30d 60d 90d+

Recommended actions

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

CDN & Delivery

Cloudflare

REVIEW

Cloudflare

Site is served via Cloudflare CDN (edge: GRU)

Got: cf-ray: a1d78bda4d6445d3-GRU

CDN Detected: Cloudflare

Provider Cloudflare Evidence cf-ray: a1d78bda4d6445d3-GRU

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

2 A records, 306 ms lookup

PASS

2 A records, 306 ms lookup

Resolves to 2 IPv4 address(es)

Got: 104.21.79.97, 172.67.169.233

Has 2 IPv6 (AAAA) record(s)

Got: 2606:4700:3034::ac43:a9e9, 2606:4700:3036::6815:4f61

2 nameserver(s) configured

Got: lee.ns.cloudflare.com, liberty.ns.cloudflare.com

3 mail exchanger(s) configured

SPF record present in TXT

DNS resolution is slow (306 ms)

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Got: 306 ms

A	104.21.79.97, 172.67.169.233
AAAA	2606:4700:3034::ac43:a9e9, 2606:4700:3036::6815:4f61
CNAME	—
NS	lee.ns.cloudflare.com, liberty.ns.cloudflare.com
MX	58 route3.mx.cloudflare.net 69 route2.mx.cloudflare.net 98 route1.mx.cloudflare.net
TXT	SPF v=spf1 include:_spf.mx.cloudflare.net ~all
CAA	Lookup not available with standard resolver

Resolved in 306 ms

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+

Subdomain Takeover

No subdomain takeover risk detected

PASS

No subdomain takeover risk detected

No CNAME record present

A+

Redirect Chain

No redirects — direct access

PASS

No redirects — direct access

Got: https://rewordsai.app

https://rewordsai.app

649 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://rewordsai.app	200	649 ms	HTTP/1.1	cloudflare

A+

IPv6 Readiness

IPv6 reachable (2 ms)

PASS

IPv6 reachable (2 ms)

IPv6 is configured and reachable at 2606:4700:3034::ac43:a9e9, 2606:4700:3036::6815:4f61

Got: 2 ms connect

IPv6 Ready

AAAA Records 2606:4700:3034::ac43:a9e9, 2606:4700:3036::6815:4f61 Connection Reachable (2 ms)

A+

Crawlability

robots.txt present, sitemap with 34 URLs

PASS

robots.txt present, sitemap with 34 URLs

robots.txt is present

Got: 5475 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 34 entries

robots.txt references sitemap

robots.txt 200 OK

Size 5475 B Sitemaps referenced 1 User-agents Applebot-Extended, Bytespider, ClaudeBot, CloudflareBrowserRenderingCrawler, Google-Extended, GPTBot, OAI-SearchBot, *, Amazonbot, CCBot, meta-externalagent, ChatGPT-User, PerplexityBot Blocking No — crawling allowed

# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a Content-Signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a Content-Signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a Content-Signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via Content-Signal with respect to the corresponding use.

# The content signals and their meanings are:

# search:   building a search index and providing search results (e.g., returning
#           hyperlinks and short excerpts from your website's contents). Search does not
#           include providing AI-generated search summaries.
# ai-input: inputting content into one or more AI models (e.g., retrieval
#           augmented generation, grounding, or other real-time taking of content for
#           generative AI search answers).
# ai-train: training or fine-tuning AI models.
# use:      how AI systems may consume the content (immediate, reference, or full).

# ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF
# RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT
# AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET.

# BEGIN Cloudflare Managed content

User-agent: *
Content-Signal: search=yes,ai-train=no,use=reference
Allow: /

User-agent: Amazonbot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: CloudflareBrowserRenderingCrawler
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: meta-externalagent
Disallow: /

# END Cloudflare Managed Content

User-Agent: *
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

User-Agent: GPTBot
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

User-Agent: ChatGPT-User
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

User-Agent: OAI-SearchBot
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

User-Agent: ClaudeBot
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

User-Agent: PerplexityBot
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

User-Agent: Google-Extended
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /api/
Disallow: /sign-in
Disallow: /sign-up
Disallow: /forgot-password
Disallow: /reset-password
Disallow: /verify-email
Disallow: /redeem-invite
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-up
Disallow: /zh/forgot-password
Disallow: /zh/reset-password
Disallow: /zh/verify-email
Disallow: /zh/redeem-invite

Host: rewordsai.app
Sitemap: https://rewordsai.app/sitemap.xml

sitemap.xml 200 OK

Type URL Set URLs 34 entries Valid XML Yes

Sample URLs:

A+

Domain Intelligence

rewordsai.app — via Namecheap Inc., 3 days old

PASS

rewordsai.app — via Namecheap Inc., 3 days old

Domain registered until Jul 15, 2027 (1 years remaining)

Domain is only 3 days old

Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.

Got: Registered Jul 15, 2026

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.

Registrar: Namecheap Inc.

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.

Domain expiry

359 days

July 15, 2027

SSL certificate

88 days

Issued by Google Trust Services

Domain age

3 days

Registered July 15, 2026

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3036::6815:4f61

Registrar

Namecheap Inc.

Unlocked 2 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
Newly registered domain — build backlinks and content to establish SEO trust
Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers

Registrar Namecheap Inc.

Created July 15, 2026 (3 days ago)

Expires July 15, 2027 (1 years)

Last Updated July 16, 2026

Name Servers lee.ns.cloudflare.com, liberty.ns.cloudflare.com

DNSSEC Not enabled

Hosting

IP Address 2606:4700:3036::6815:4f61

Data source: rdap (0.4s)

Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.

Why this matters

Informational: domain age. Newer domains may have lower trust signals in spam/security filters.

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

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.