trycobio.com website review

Reduce initial server response time. Google estimates savings of 918 ms on a phone.

The HTML itself could arrive about 900 ms sooner: redirects, a slow server response or missing compression delay everything after it.

3 files block the first paint until they finish downloading. Deferring or inlining them could save about 900 ms.

Shopify costs a phone 199 ms of main-thread work and 306 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.

Your server takes 1.0 s to send the HTML. Google recommends under 600 ms; everything else waits for it.

8 third-party services load with your homepage (Shopify, shrinetheme.com and Cloudflare and others), adding 454 KiB and 235 ms of main-thread time.

About 221 KiB of JavaScript is downloaded but never used on this page.

About 11 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

2 long tasks block the main thread while loading, the longest for 111 ms. During a long task the page ignores taps.

Polyfills for old browsers add 16 KiB JavaScript that modern phones do not need.

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

7 KiB could be saved by minifying JavaScript.

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

Visually, the page fills in at 5.5 s (Speed Index). Good is under 3.4 s.

The page becomes fully interactive after 4.8 s. Good is under 3.8 s.

The first text or image appears after 2.0 s on a phone. Good is under 1.8 s.

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

By the Sustainable Web Design model, a visit to your homepage emits about 0.15 g of CO₂e: 18.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 form field has no label, so screen readers announce an empty box and autofill guesses.

No meta description, so Google writes its own snippet from whatever text it finds.

Your title is only 18 characters: “CoBIO™ US – Comody”. Between 30 and 65 characters leaves room to say what you do and for whom.

There are 2 <h1> headlines (“” and “coBIO™ Contour Relief Pillow”). One clear main headline is easier for people and search engines.

No XML sitemap at https://trycobio.com/sitemap.xml, so Google discovers your pages only by following links.

No favicon is declared in the HTML, so browser tabs and Google's mobile results may show a generic icon.

The homepage links to 17 pages on trycobio.com and 0 external pages.

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.

robots.txt blocks GPTBot, ClaudeBot, Google-Extended, Applebot-Extended and CCBot, which collect pages to train models. That's a legitimate choice and doesn't by itself stop the site appearing in AI answers, which the crawlers above handle.

Your homepage links to /pages/contact, /collections/all, /products/botana-natural-hair-growth-oil, /products/contour-pillow, /products/50-off-razors and /policies/privacy-policy and 3 others, which answer with an error. Visitors hit a dead end and search engines drop them.

We fetched 9 pages linked from your homepage and read each the way a search engine does.

3 images failed to load on a phone, for example https://trycobio.com/cdn/shop/files/Blue.png?v=1723870119&width=400.

On a 390 px-wide phone the page scrolls sideways, a sign that something is wider than the screen.

7 of 18 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

The page uses 1 deprecated browser API that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

3 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

11 links from your homepage to your own site are broken, for example https://trycobio.com/pages/contact (404).

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.

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.

trycobio.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.

trycobio.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.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage has only about 151 words of visible text; thin pages give Google and first-time buyers little to go on.

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

trycobio.com has no DMARC record, so nothing tells receivers what to do with mail that fails SPF or DKIM. Gmail and Yahoo require DMARC from bulk senders.

trycobio.com has no SPF record, so mail servers can't tell which servers may send email as you. Your mail lands in spam more often, and anyone can send mail pretending to be you.

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.

trycobio.com has no MX record, so it receives no email. SPF -all and DMARC reject still matter: they stop others sending mail as you.

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.

Opening the homepage sets 1 cookie (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 14 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.