Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSFIX
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
HTTP version does not redirect to HTTPS
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
CCrawlabilityActionrobots.txt present, sitemap with 0 URLsREVIEW
Search engines may not be able to parse the sitemap. Fix XML validation errors.
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.
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.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
<!DOCTYPE html><html id="ng-app"><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no"><meta name="prerender-status-code" content="503"><base href="/"><title>Grubhub food delivery is not available in your country</title><meta name="description" content="Free online ordering from restaurants near you! With more than 30,000 restaurants in 500+ cities, food delivery or takeout is just a click away. Because with Grubhub: Click, click, food!"><meta property="og:url" content="https://grubhub.com/about/error/out-of-country"><meta property="og:type" content="website"><meta property="og:title" content="Grubhub food delivery is not available in your country"><meta property="og:description" content="Free online ordering from restaurants near you! With more than 30,000 restaurants in 500+ cities, food delivery or takeout is just a click away. Because with Grubhub: Click, click, food!"><meta name="twitter:card" content="summary_large_image"><meta name="twitter:site" content="@grubhub"><meta name="twitter:creator" content="@grubhub"><meta name="twitter:title" content="Grubhub food delivery is not available in your country"><meta name="twitter:description" content="Free online ordering from restaurants near you! With more than 30,000 restaurants in 500+ cities, food delivery or takeout is just a click away. Because with Grubhub: Click, click, food!"><link rel="icon" type="image/x-icon" href="http://gh-prod-umami-grubhub.s3-website-us-east-1.amazonaws.com/img/grubhub/favicon.ico"><link rel="shortcut icon" type="image/x-icon" href="http://gh-prod-umami-grubhub.s3-website-us-east-1.amazonaws.com/href/grubhub/favicon.ico"><link rel="stylesheet" href="https://gh-prod-umami-grubhub.s3.us-east-1.amazonaws.com/css/grubhub-out-of-country.css"<link rel="canonical" href="https://grubhub.com/about/error/out-of-country"></head><body><div class="mainNav"><div class="mainNavCol mainNavBrand"><a href="/" title="grubhub" class="mainNavBrand-logo"><img src="https://res.cloudinary.com/grubhub-assets/image/upload/v1651068764/Citrus-assets/Logos/No%20Registered%20Mark/1_Grubhub_Logo_NotRegistered/SVG/grubhub_NotRegistered_Orange_RGB.svg"></a></div></div><div class="outerWrapper clearfix"><div class="innerWrapper clearfix"><div class="errorPage-container"><div class="errorPage"><div class="errorPage-reasons"><h1 id="sorry-about-that">Sorry about that</h1><p>Grubhub food delivery is not available in your country</p></div><div class="errorPage-image"><img src="http://gh-prod-umami-grubhub.s3-website-us-east-1.amazonaws.com/img/grubhub-error-image.svg"></div></div></div></div></div><dashi-analytics-tag page-group="convenience features" page-subgroup="help" view-name="viewed-error-page"></dashi-analytics-tag></body></html>
BTLS Certificate Expiry & Recommendations215 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
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
ADNS Records1 A records, 273 ms lookupPASS
| A | 151.101.1.160 |
| AAAA | — |
| CNAME | — |
| NS | ns03.5naans.com, dns3.p03.nsone.net, ns04.5naans.com, dns4.p03.nsone.net, ns02.5naans.com, ns01.5naans.com, dns2.p03.nsone.net, dns1.p03.nsone.net |
| MX | 5 aspmx.l.google.com 10 alt1.aspmx.l.google.com 10 aspmx4.googlemail.com 10 alt2.aspmx.l.google.com 20 aspmx3.googlemail.com 20 aspmx5.googlemail.com 20 aspmx2.googlemail.com |
| TXT | pardot1119633=4dc1492299ecf3ed00e4141667e3103672c61c72a0aea700c1fb7928c5c4f41e atlassian-domain-verification=mlwLwSzSviWCve4G4o5ioKtyprfxxsjOLtXjviMIE/x13Su6mc... google-site-verification=W_pqactQYtwhfDiO09EBitKaLzPsUww30n4iyKRuRxI cursor-domain-verification-hn9t1s=QYJNhE6dsr6Dpf6U8LwywfLxC MS=ms79930725 ca3-a81451b2032644cdb6ff831cf713da74 google-site-verification=faVNJyImacXwcDZ2nSTSILO0bG_L3o9yBOkJRZX4Sd4 docker-verification=dcb6731a-c031-4a9b-a31e-e18795b2aca8 ecostruxure-it-verification=58df7799-ddea-4515-a2cf-ba3fca50bbd5 miro-verification=ae8b84bd6543df26b85c1aab27dff838302925cb linear-domain-verification=efgy9m5w476x jamf-site-verification=_vMYz1ZL3g61UFh-VzYADQ sending_domain1119663=5caada7c1352f1b9e23a93d2bcf9cc26065e5162b9fb53781134bf66e9... twilio-domain-verification=881479778fd369d89ec4c13cb28f12e5 apple-domain-verification=cuIe25oDKQvuDF2M sending_domain953733=b62d437070feb26cc1089d99effaeb2e20d8a4560b62d61adf865049ce2... docusign=5bfd0cc2-01b6-482e-9b0d-dacadc887539 stripe-verification=BB4E52331A09023014E330665B77F2F60049089A674AF3D4A0E4BF7C63CC... mongodb-site-verification=vRJ8VYud3PZoguBUYi3Ti6JnLsmNj45Z docusign=74de47ed-a565-4935-ab3c-071546e4b659 _7hudlogeeqgxfo358ibfzfdhdbkqvln anthropic-domain-verification-6efzd8=LTBLrKoyaNT6xHHyZKHKInNqZ pardot1119663=407dae17bf7a17aae7d8d5bec84d75a20095db6e3e1091be41f0f4bcd80f7eca jamf-site-verification=Ln0yjjEwuEakKIle2errEA logmein-verification-code=452ab87f-92a0-478c-86e4-0ee00f23800a SPF v=spf1 include:grubhub.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._sp... stripe-verification=4c3c39b3c39fb6aaa44237bf6938d1721b72303f75df514e76fda60f1a85... mongodb-site-verification=Uf1XitNhBe2uuuoC3TV8jkmPSYxsqkOW canva-site-verification=Pvn6de7NMb2RV4ewU0Hg0w teamviewer-sso-verification=7a561e0fceb440ae9d7f05e89ce5795a postman-domain-verification=02cbb420e1ae74a50f7200d3e733afb126a5e1902b5976260ae4... miro-verification=e6f02d151811e3190f5a77c2409760f70a06e17c hpe-greenlake-domain-verification=792d68583354764969466871446b686d4c6c4339764448... google-site-verification=ULxhTEn1e58GMKor3792Oz-5cvlnuHfXwDZTmnI9svw sending_domain1119633=73b5cffbc0f26acaff792a5ccb98a0f98ac2394e08e04e8bd1d1ab5e76... cisco-ci-domain-verification=39fbcee7c39cc0793682b731b3e53772349bfe191a368ff1cb9... pardot1119663=a93d1e46339fc5ddfb09b7ba48c2f188e3ff2cd6fe7803518c0fd035f86e8261 pardot1119663=c1b054851fb188d6c2dbb0e8321f1a0cd85b3405aa9c9111e9a50d0ecce9c997 adobe-idp-site-verification=a4c1d07007a7f3071a981dd8985111f302d2985cd23b594162e5... google-site-verification=aBIAwXvUYb698NEMyv37XtangeHPA2nztFuIJblm_Jk wiz-domain-verification=b0245d1e9a857c4a33d2ffbfa2bb04771aee80607b3993f930f8fc0c... intacct-esk=4FED1A3FC782C26AE053E506A8C0199E google-site-verification=MKHHO7Z4Qj7XyuZmnxTmVF8trJ3NTTHZvlTVPFZGABY meltwater_sso_20250328_TRITON-27487 stripe-verification=b505153814767be9cf642e2dcd70f8ed3dc396f7323b0911ffc08990271d... sterling-domain-verification=f303e58488da49479264115b77f2a59f ZOOM_verify_0ZVDQ86YQm2vqT1Ouyr8Kw globalsign-domain-verification=QCdmvx2FmvCpeqYXQsTAMJMq2YjyK0VzLosSdN6aMP google-site-verification=XpppcAlGfBKzVlrHtIdYn51dfNF8rJ6CVseUWaMNIQA hcp-domain-verification=23816fa08e310b2ee7f6f6b3264b4ae0d7a78cb32fd3a7ba26a2c100... atlassian-domain-verification=XVqbnZtlBNr5PczzFHa3/oXXnyuL8FP8fVxhKZTVHUK5eaqqyu... openai-domain-verification=dv-U3DEwpJjWVxE0HAAHb9oaeHL google-site-verification=fmoRfHe1vdUOFqqfkN_h92e3TMR9m55G3I8TsPzopcM google-site-verification=jjDbWSt7X00zr9YVHVOGhN0uaPqyghouwPx6Qg7VngQ stripe-verification=2aa05780b14cd671e4cb165c09dfbb9239f23cbb5b8fcc599ea0d3367da1... google-site-verification=zqrqtg-srIj-OZ076hM8yNMiHFxUv0oP0hnSfjj9i2I smartsheet-site-validation=XUlMlv70B5RR2z0yHVgRlzbe_AVwxIe6 |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
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.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
A+Redirect ChainNo redirects — direct accessPASS
https://grubhub.com
5 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://grubhub.com | 200 | 5 ms | HTTP/1.1 | Varnish |
A+Domain Intelligencegrubhub.com — via GoDaddy Corporate Domains, LLC, 23 years, 9 months old, hosted on FastlyPASS
1177 days
November 6, 2029
215 days
Issued by GlobalSign nv-sa
23 years, 9 months
Registered November 6, 2002
Not enabled
Protects against DNS spoofing
Fastly
ASN AS54113
151.101.1.160
GoDaddy Corporate Domains, LLC
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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