alside.com website review

4 images could be 4.0 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 21.9 s faster on a phone.

11 files are served with short cache lifetimes, so returning visitors download them again (349 KiB).

About 450 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.3 s faster on a phone.

21 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.0 s.

Your mobile performance score is 41. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

8 third-party services load with your homepage (Google Tag Manager, Facebook and Cloudflare CDN and others), adding 928 KiB and 1.2 s of main-thread time.

Google Tag Manager costs a phone 668 ms of main-thread work and 533 KiB 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.

About 87 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 600 ms faster on a phone.

Facebook costs a phone 390 ms of main-thread work and 312 KiB 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 3.4 s on main-thread work while loading, 1.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

11 long tasks block the main thread while loading, the longest for 251 ms. During a long task the page ignores taps.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

Polyfills for old browsers add 31 KiB JavaScript that modern phones do not need.

6 KiB could be saved by minifying CSS.

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

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

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.

Your largest element takes 49.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “COMPOSITE CLADDING Complete your exterior design with ASCEN…”.

The page becomes fully interactive after 49.7 s. Good is under 3.8 s.

Visually, the page fills in at 10.3 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 1.0 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 96 ms to 130 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

The first text or image appears after 2.4 s on a phone. Good is under 1.8 s.

4 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 1.0 s to 1.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 8.5 MB in 108 requests on a phone: images 7.1 MB (16), scripts 1.2 MB (39) and fonts 157 KiB (3). Under 2 MB keeps phones on slow connections fast.

1 image (32 KiB) is 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.

2 images further down the page (129 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 2.42 g of CO₂e: 290.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 image has no alt text, which hurts accessibility and image search.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

5 visible links have no text or label, so screen readers cannot say where they go.

Headings skip levels (h1 → h4), which makes the page harder to scan with a screen reader.

Your title is only 13 characters: “Home - Alside”. Between 30 and 65 characters leaves room to say what you do and for whom.

Your meta description is 166 characters; Google truncates after about 160, so the end of your pitch is cut.

2 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 105 pages on alside.com and 8 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

There is no /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.

/product-catalog/vinyl-soffit-vertical-siding has no meta description, so Google writes the search snippet from whatever text it finds.

We fetched 15 pages linked from your homepage (of 59 found) and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 404 ()”.

1 image is displayed at the wrong aspect ratio, so it looks stretched or squashed.

2 images are served at too low a resolution for sharp phone screens.

http://alside.com does not redirect to https, so some visitors land on the insecure version.

No Strict-Transport-Security header, so browsers may still try plain http first on a return visit.

No Content-Security-Policy header, the main browser-side defence against injected scripts.

Neither X-Frame-Options nor a CSP frame-ancestors policy is set, so any site can embed yours in a frame.

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

1 link go through two or more redirects, for example https://associatedmaterials.widencollective.com/portals/p6u9t090/AlsidePortal.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

alside.com has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

alside.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

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.

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

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 423 words of visible text.

Your SPF record doesn't end in -all or ~all, so it doesn't stop other servers sending as you: “v=spf1 redirect=29j97u39._spf._d.mim.ec”.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, LinkedIn Insight and Meta Pixel and 2 mores (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 10 cookies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 28 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.