Category benchmark · Snapshot 23 October 2026

Food & Grocery Delivery: website readiness

31 configuration checks across 413 Food & Grocery Delivery sites from the SID website catalog, with 224 individual profiles for sites in the Chrome UX Report top 50K.

Sites measured: 413
Median readiness index: 68/100
Profiles: 224
Weakest lane: Recover

Readiness by lane

Enable

85/100

All sites 77

Harden

59/100

All sites 56

Accelerate

64/100

All sites 64

Recover

12/100

All sites 10

Biggest gaps for Food & Grocery Delivery sites

The checks with the most room to improve, weighted by impact.

HSTS kept for at least a year
42% observed · all sites 34%
Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.
Guide: HTTPS and TLS Guide for Website Owners
security.txt published
6% observed · all sites 7.1%
Publish /.well-known/security.txt with at least Contact and Expires fields, as RFC 9116 requires, and review it before it expires.
Guide: A Practical Website Health Check for Owners
Modern image formats in use
40% observed · all sites 40%
Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
CAA records limit who can issue certificates
9.7% observed · all sites 13%
Publish CAA records naming every CA you actually use, including the CAs your CDN uses for managed certificates. Add an iodef contact if you want reports.
Guide: HTTPS and TLS Guide for Website Owners
DMARC policy enforces quarantine or reject
42% observed · all sites 39%
Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
Guide: A Practical Website Health Check for Owners
No render-blocking scripts in <head>
43% observed · all sites 48%
Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.
Guide: Control Third-Party Scripts Before They Control Your Page

Where Food & Grocery Delivery sites lead

XML sitemap discoverable87% observedall sites 70%
robots.txt published91% observedall sites 76%
Structured data present63% observedall sites 51%
Canonical URL declared80% observedall sites 68%

Stack mix

CDN and edge

Platform or framework

DNS operator

Certificate authority

Readiness leaders

Food & Grocery Delivery sites in the top 50K with the highest share of observed practices (at least 26 of 31 checks measured). This lists only what we observed on 23 October 2026; owners can request a correction.

All 31 checks for Food & Grocery Delivery

Check	Lane	Observed	All sites	Measured
HTTP requests move to HTTPS	Harden	96%	91%	384
HSTS kept for at least a year	Harden	42%	34%	408
TLS 1.3 negotiated	Harden	95%	91%	411
Certificate has more than 14 days left	Harden	99%	99%	411
Certificate lifetime of 100 days or less	Harden	61%	67%	411
CAA records limit who can issue certificates	Harden	9.7%	13%	413
DNSSEC signed	Harden	6.6%	8%	412
security.txt published	Harden	6%	7.1%	403
DMARC policy enforces quarantine or reject	Harden	42%	39%	412
X-Content-Type-Options: nosniff	Harden	53%	48%	408
Framing restricted	Harden	56%	51%	408
Content Security Policy present	Harden	37%	32%	408
Referrer-Policy set	Harden	27%	24%	408
HTTP/2 negotiated	Accelerate	93%	90%	411
HTTP/3 advertised	Accelerate	35%	37%	408
HTML compressed	Accelerate	90%	93%	408
Static files cached for 30 days or more	Accelerate	59%	51%	366
Modern image formats in use	Accelerate	40%	40%	360
Offscreen images lazy-loaded	Accelerate	63%	62%	356
No render-blocking scripts in <head>	Accelerate	43%	48%	408
robots.txt published	Enable	91%	76%	402
XML sitemap discoverable	Enable	87%	70%	407
Reachable over IPv6	Enable	49%	48%	412
Canonical URL declared	Enable	80%	68%	408
Meta description written	Enable	93%	84%	408
Mobile viewport configured	Enable	>99%	94%	408
Structured data present	Enable	63%	51%	408
Social preview image set	Enable	63%	57%	408
Page language declared	Enable	95%	90%	408
At most one redirect to the homepage	Enable	97%	98%	409
Nameservers spread across providers	Recover	12%	10%	413

Food & Grocery Delivery profiles

Readiness index shown next to each site.

Food & Grocery Delivery: website readiness

Readiness by lane

Biggest gaps for Food & Grocery Delivery sites

HSTS kept for at least a year

security.txt published

Modern image formats in use

CAA records limit who can issue certificates

DMARC policy enforces quarantine or reject

No render-blocking scripts in <head>