opensourcepv.com website review

3 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.7 s.

About 118 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 610 ms faster on a phone.

About 414 KiB of JavaScript is downloaded but never used on this page.

2 long tasks block the main thread while loading, the longest for 393 ms. During a long task the page ignores taps.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 200 ms).

10 KiB could be saved by minifying CSS.

4 files are served with short cache lifetimes, so returning visitors download them again (35 KiB).

Polyfills for old browsers add 19 KiB JavaScript that modern phones do not need.

1 third-party service load with your homepage (Google Fonts), adding 67 KiB and 1 ms of main-thread time.

1 image could be 7 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

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

The page becomes fully interactive after 7.4 s. Good is under 3.8 s.

The first text or image appears after 2.3 s on a phone. Good is under 1.8 s.

Visually, the page fills in at 3.6 s (Speed Index). Good is under 3.4 s.

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

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 0.30 g of CO₂e: 36.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 form fields have no label, so screen readers announce an empty box and autofill guesses.

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

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

Headings skip levels (h2 → h5), which makes the page harder to scan with a screen reader.

The robots meta tag says “noindex”: Google is told not to list this page at all.

Your robots.txt disallows the whole site for every crawler, so search engines are told to stay out.

Google's crawler is blocked from indexing this page.

Your title is only 19 characters: “Home | opensourcepv”. Between 30 and 65 characters leaves room to say what you do and for whom.

Your canonical URL points to odoo.com, not opensourcepv.com, so Google may credit that host instead.

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

Your meta description is only 35 characters: “This is the homepage of the website”. 70 to 160 characters is enough to sell the click.

The homepage links to 27 pages on opensourcepv.com and 2 external pages.

Your robots.txt shuts out ChatGPT search (OAI-SearchBot), ChatGPT (ChatGPT-User), Claude search (Claude-SearchBot), Claude (Claude-User), Perplexity (PerplexityBot) and Perplexity (Perplexity-User). These fetch pages to answer people's questions and cite the source, so your site can't be quoted or linked in those answers.

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.

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.

Your homepage links to /privacy, /website/social/facebook, /website/social/twitter and /website/social/instagram, which answer with an error. Visitors hit a dead end and search engines drop them.

/shop, /blog, /contactus and /fr are marked noindex but linked from your homepage. If they are meant to be found, remove the noindex.

/ and /fr all use the title “Home | opensourcepv”. Search engines can't tell which page to show for a search, so each competes with the others.

/shop and /blog have no meta description, so Google writes the search snippet from whatever text it finds.

/shop and /blog have no <h1> headline, so visitors and search engines get no clear main topic.

/shop, /blog, /contactus and /fr took over 3 s to send their HTML from our server.

We fetched 8 pages linked from your homepage and read each the way a search engine does.

Large scripts ship without source maps.

2 links from your homepage to your own site are broken, for example https://www.opensourcepv.com/privacy (404).

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

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.

Opening https://opensourcepv.com goes through 2 redirects before the homepage loads.

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.

opensourcepv.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.

opensourcepv.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.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

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

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 311 words of visible text.

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 3 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 2 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.