https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app

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 Madrid, Spain

302 Found

Checks

6 PASS 9 REVIEW 1 FIX

Redirect Chain

Action

2 redirect(s), 1037 ms total

FIX

2 redirect(s), 1037 ms total

2 redirects before reaching final URL

Each redirect adds latency. Try to minimize the chain to 1 hop.

Uses 302 (temporary) redirect

If permanent, use 301 instead.

Got: https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app

Redirect overhead: 1037 ms total

Got: 1037 ms

Cross-domain redirect detected

https://travel-itinerary-fljaat4j5-alter...

197 ms · HTTP/1.1

302

https://vercel.com/sso-api?url=https%3A%...

456 ms · HTTP/1.1

307

https://vercel.com/login?next=%2Fsso-api...

383 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://travel-itinerary-fljaat4j5-alter...	302	197 ms	HTTP/1.1	Vercel
2	https://vercel.com/sso-api?url=https%3A%...	307	456 ms	HTTP/1.1	Vercel
3	https://vercel.com/login?next=%2Fsso-api...	200	383 ms	HTTP/1.1	Vercel

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

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

0/2 IPs match cert SAN

REVIEW

0/2 IPs match cert SAN

PTR lookup failed for 216.198.79.131: lookup 216.198.79.131: 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 64.29.17.131: lookup 64.29.17.131: 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.

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

Action

robots.txt present, sitemap with 0 URLs

REVIEW

robots.txt present, sitemap with 0 URLs

robots.txt is present

Got: 10240 bytes

sitemap.xml is present

sitemap.xml contains invalid XML

Search engines may not be able to parse the sitemap. Fix XML validation errors.

sitemap.xml is empty — no URLs found

An empty sitemap provides no value. Add <url> entries for your pages.

robots.txt does not reference a sitemap

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more ▾

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK

Size 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed

<!DOCTYPE html><html data-dpl-id="dpl_DqdMJQD7BL5rzxtHy8NcLXkLzNAy" class="VEU71W_className X0u9Hq_className VEU71W_variable X0u9Hq_variable dash" lang="en-US"><head><meta charSet="utf-8"/><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/><link rel="stylesheet" href="/_next/static/immutable/chunks/2_ghf5y9lc3sk.css" data-precedence="next"/><link rel="stylesheet" href="/_next/static/immutable/chunks/1yz4juxqdadjx.css" data-precedence="next"/><link rel="stylesheet" href="/_next/static/immutable/chunks/1-9yb6i_h9yg1.css" data-precedence="next"/><link rel="stylesheet" href="/_next/static/immutable/chunks/1l77hjsus1-at.css" data-precedence="next"/><link rel="preload" as="script" fetchPriority="low" href="/_next/static/immutable/chunks/1krd_81cec7ra.js"/><script src="/_next/static/immutable/chunks/3yv6159ozhjo1.js" async=""></script><script src="/_next/static/immutable/chunks/2ddjettp8-k6m.js" async=""></script><script 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a{#a;#b;#c=0;constructor(){let{promise:b,resolve:c}=a.#d();this.#a=b,this.#b=c,this.#e(),window.addEventListener("online",this.#f),window.addEventListener("visibilitychange",this.#f)}getChallenge=async()=>(await this.#g(),await this.#a.then(a=>"function"==typeof a?a():a));#f=()=>{if(document.hidden)return;let{promise:b,resolve:c}=a.#d();this.#a=b,this.#b=c,window.V_C=[],window.V_C.push=c;let d=document.querySelector('script[src*="c.js"]');d&&d.remove(),this.#c+=1};#e=()=>{if(window.V_C){let a=window.V_C.pop();a&&this.#b(a)}else window.V_C=[],window.V_C.push=this.#b};#g=()=>{let a=new URL("/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-a3be-862e0f06eea3/a-4-a/c.js",window.location.origin);return a.searchParams.set("i",String(this.#c)),a.searchParams.set("v",String(3)),a.searchParams.set("h",window.location.host),b(a.pathname+a.search)};#h=()=>{window.V_C=void 0};static #d(){let a,b;return{promise:new Promise((c,d)=>{a=c,b=d}),resolve:a,reject:b}}},d=class 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b}},e=a=>{let b=a.replace(/[.?+^$[\]\\(){}|-]/g,"\\$&").split("*").join(".*");return RegExp(`^${b}$`)},f=({path:a,pattern:b})=>-1!==a.search(b);!function({protect:a=[]}){let b;for(let b of a)if(b.advancedOptions?.checkLevel!==void 0&&"deepAnalysis"!==b.advancedOptions.checkLevel&&"basic"!==b.advancedOptions.checkLevel)throw Error(`Invalid checkLevel "${b.advancedOptions.checkLevel}" for route "${b.path}". Must be one of: deepAnalysis, basic`);let g=new c,h=new d(a);(async function(a,b,c){let d=XMLHttpRequest.prototype.open,g=XMLHttpRequest.prototype.send;XMLHttpRequest.prototype.open=function(a,b,c,e,f){return this._requestUrl=b.toString(),this._requestMethod=a,d.call(this,a,b,c??!0,e,f)},XMLHttpRequest.prototype.send=async function(d){let h=this.

sitemap.xml 200 OK

Type URL Set URLs 0 entries Valid XML No

TLS Certificate Expiry & Recommendations

31 days until leaf cert expires — 2 issues to address

REVIEW

Certificate validity

days left

0d 30d 60d 90d+

Recommended actions

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

Document on Vercel; assets also on Akamai

REVIEW

Document on Vercel; assets also on Akamai

Document is served via Vercel CDN

Got: delegation travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app

Assets on Akamai: assets.vercel.com (assets: 10)

Got: 2a02:26f0:e0:4a2::29cc in 2a02:26f0::/32 (Akamai)

Assets on Vercel: vercel.com (assets: 6), cache HIT

Got: x-vercel-id: cdg1::9jmc4-1793060193543-0c3cd367c007

Document served via CDN: Vercel

Provider Vercel Evidence delegation travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app

Asset hosts on a CDN

assets.vercel.com — Akamai · assets: 10
vercel.com — Vercel · assets: 6 · Cache Status: HIT

Other asset hosts

accounts.google.com — assets: 3 · Google
si-next.vercel-scripts.com — assets: 1 · below probe threshold

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.

DNS Records

2 A records, 146 ms lookup

PASS

2 A records, 146 ms lookup

Resolves to 2 IPv4 address(es)

Got: 216.198.79.131, 64.29.17.131

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: 146 ms

Got: 146 ms

A	216.198.79.131, 64.29.17.131
AAAA	—
CNAME	—
NS	—
MX	—
TXT	—
CAA	Lookup not available with standard resolver

Resolved in 146 ms

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 13ms across 3 resolvers (spread 20ms)

PASS

Mean 13ms across 3 resolvers (spread 20ms)

Quad9: 0ms

Got: 0ms 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+

URL Variants

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

PASS

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

HTTP correctly redirects to HTTPS permanently

Got: HTTP 308

www / non-www

https://www.travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/

200https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/

HTTP → HTTPS

308http://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/ → https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/

Consistent

A+

HTTP Probe Timing

Total 382 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

27 ms

TCP Connect

1 ms

TLS Handshake

38 ms

Time to First Byte

382 ms

Total Time

382 ms

Connection waterfall

DNS Lookup 27 ms TCP Connect 1 ms TLS Handshake 38 ms Server Processing 316 ms Content Transfer 0 ms

A+

Health Check Endpoint

Health endpoint at https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/health (HTTP 200)

PASS

Health endpoint at https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/health (HTTP 200)

Public health endpoint at https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/health

Got: https://travel-itinerary-fljaat4j5-alterlavi100-2079.vercel.app/health

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.