schiffvitamins.com website review

8 images could be 3.0 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 11.3 s faster on a phone.

9 files are served with short cache lifetimes, so returning visitors download them again (841 KiB).

About 515 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.5 s faster on a phone.

6 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.4 s.

Your mobile performance score is 15. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

5 third-party services load with your homepage (Optanon, Google Tag Manager and Adobe TypeKit and others), adding 5.4 MB and 339 ms of main-thread time.

Optanon costs a phone 188 ms of main-thread work and 2.1 MB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

10 long tasks block the main thread while loading, the longest for 398 ms. During a long task the page ignores taps.

contentstack.com costs a phone 0 ms of main-thread work and 3.1 MB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

A phone's processor spends 3.0 s on main-thread work while loading, 2.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

About 67 KiB of CSS is downloaded but never applied on this page.

Polyfills for old browsers add 9 KiB JavaScript that modern phones do not need.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

Real visitors wait 742 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

For real visitors the layout shifts by 0.74 (75th percentile). Good is under 0.1.

Your largest element takes 33.0 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Save on Groceries This Season”.

The page becomes fully interactive after 33.0 s. Good is under 3.8 s.

Visually, the page fills in at 10.4 s (Speed Index). Good is under 3.4 s.

The layout shifts by 0.636 while loading, so content jumps under the reader's thumb. Good is under 0.1.

Scripts block taps and scrolling for 1.3 s in total while the page loads. Good is under 200 ms.

Real visitors wait 2.6 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 131 ms to 252 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 1.9 s (75th percentile). Good is under 1.8 s.

The first text or image appears after 2.7 s on a phone. Good is under 1.8 s.

2 images have no width and height attributes, so the layout jumps as each one loads.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 2.9 s to 3.2 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 6.8 MB in 65 requests on a phone: images 3.2 MB (13), scripts 2.9 MB (20) and other files 331 KiB (22). Under 2 MB keeps phones on slow connections fast.

2 images weigh 2.1 MB together. On a phone connection a single image that size takes seconds.

1 image is downloaded at several times the size a phone draws it, for example reckitt-logo.png at 3,840 px wide, shown at 120 px. Resized copies would save about 815 KiB.

3 images (2.1 MB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

bltf1514a065470e230.webp is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

6 images further down the page (967 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 1.92 g of CO₂e: 229.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 tap targets are too small or too close together to hit reliably with a finger.

Alternative text of images should not be repeated as text: 4 elements on the page fail this check, rated minor by axe-core.

Headings should not be empty: 1 element on the page fails this check, rated minor by axe-core.

Elements with visible text labels do not have matching accessible names. (2 elements).

Structured data found (ItemList, Organization, WebPage and WebSite) but with 1 problem, for example “Organization: logo is not an absolute URL ("https://www.schiffvitamins.com/static/f2d347387aed3bd37591652144fb400a/blt3c7bfca1c9d…”.

1 link use generic text like “click here” or “learn more”, which tells Google nothing about the page behind it.

The homepage links to 80 pages on schiffvitamins.com and 11 external pages.

Your Organization JSON-LD is missing sameAs (social profiles), description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

There is no https://www.schiffvitamins.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

https://www.schiffvitamins.com/collections/brain-health, https://www.schiffvitamins.com/collections/joint-health, https://www.schiffvitamins.com/collections/focus, https://www.schiffvitamins.com/collections/memory, https://www.schiffvitamins.com/collections/immune-support and https://www.schiffvitamins.com/collections/heart-health and 9 others have no <title>, so Google invents the link text in results.

https://www.schiffvitamins.com/collections/brain-health, https://www.schiffvitamins.com/collections/joint-health, https://www.schiffvitamins.com/collections/focus, https://www.schiffvitamins.com/collections/memory, https://www.schiffvitamins.com/collections/immune-support and https://www.schiffvitamins.com/collections/heart-health and 9 others have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 52 found) and read each the way a search engine does.

16 of 26 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

2 errors were logged to the browser console while the page loaded, for example “Connecting to 'https://use.typekit.net/fcj7ajo.css' violates the following Content Security Policy directive: "connect-…”.

Large scripts ship without source maps.

Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

Social proof on the homepage: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.

The homepage shows no opening hours. If customers visit or call, show when.

Your phone number appears as text but isn't a tel: link, so phone visitors can't tap to call.

There is no form on the homepage, so every lead has to click through to another page first.

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 382 words of visible text.

Before a visitor clicks anything, the page loads Google Tag Manager (measured from a US location before any click). A consent tool (OneTrust) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 1 cookie (measured from a US location before any click).

Loading the homepage contacts 8 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.