Site Audit | Green Star Marine

01 Summary Scores

Audit Overview

Four key dimensions scored based on automated crawl analysis conducted September 2026. The site's JavaScript-only rendering is the primary factor driving low scores across all categories.

25/100

SEO Score

40/100

Technical Health

15/100

Content Accessibility

10/100

Crawlability

Audit Methodology

This audit was conducted using automated HTTP crawling. Because gsm808.com is a JavaScript-rendered single-page application, the crawler could only retrieve the HTML shell and page title. Body content, navigation, images, and all product or service information are rendered client-side and were not accessible to this tool. Scores reflect what can be verified programmatically; many factors are marked Unknown and require a browser-based or manual review to fully assess.

02 Technical Analysis

Technical Findings

Issues identified through automated HTTP crawl and header inspection of gsm808.com.

Finding	Severity	Detail	Action Required
JavaScript-Only Rendering	Critical	Site is a single-page application where all content is rendered client-side via JavaScript. Crawlers without JS execution cannot read any body content beyond the HTML shell.	Migrate to server-side rendering (SSR) or static site generation (SSG) using Next.js, Astro, or a similar framework.
No sitemap.xml	High	No sitemap found at gsm808.com/sitemap.xml (HTTP 404). Search engines have no roadmap of the site's page inventory.	Generate and submit a sitemap.xml to Google Search Console and Bing Webmaster Tools.
No robots.txt	High	No robots.txt found (HTTP 404). Without explicit crawl directives, bots operate with no guidance on allowed or disallowed paths.	Create a robots.txt with explicit allow rules and a Sitemap reference line.
All Subpages Return 404 to Crawlers	Critical	Pages at /products, /about, and /contact all return HTTP 404 to non-JS crawlers. Client-side routing handles these routes internally but search engines cannot reach them.	Implement SSR or pre-rendering so each route returns a full HTML response with meaningful content and a 200 status code.
No Open Graph Tags Detected	Medium	Without og:title, og:description, and og:image, social shares of any page URL will produce poor-quality previews with no image or description.	Add Open Graph meta tags to every route. Each route should have a unique og:title and og:description.
No Twitter Card Meta Detected	Low	Twitter/X shares will not produce rich link previews without twitter:card and twitter:image tags.	Add twitter:card, twitter:title, twitter:description, and twitter:image meta tags to all routes.

03 SEO Analysis

SEO Factor Assessment

Assessment of standard SEO ranking factors. Many items are marked Unknown due to the JS-rendering barrier preventing content extraction.

Factor	Status	Notes
Title Tag	Partial	"Green Star Marine \| Marine Product Development" confirmed on root URL only. Subpages likely share the same title since routing is client-side.
Meta Description	Unknown	Could not be extracted due to JS rendering. Verify in browser that each route has a unique, descriptive meta description under 160 characters.
H1 Tag	Unknown	Not extractable via automated crawl. Open each major route in a browser and inspect the DOM to confirm one unique H1 per page.
Keyword Strategy	Not Assessed	Page copy is not crawlable. A manual keyword gap analysis using Ahrefs, SEMrush, or Google Keyword Planner is required.
Page Speed	Likely Poor	JS-first rendering typically adds 1-3 seconds to First Contentful Paint. Run PageSpeed Insights immediately to get a baseline score.
Core Web Vitals	Not Measured	Requires PageSpeed Insights or Lighthouse with a real browser. CWV directly affects Google's ranking signals. Prioritize this measurement.
Backlink Profile	Not Assessed	Requires Ahrefs or SEMrush audit. Domain authority and inbound link quality are significant ranking factors in competitive B2B spaces.
Local SEO / Schema	Unknown	No structured data detected in the HTML shell. Verify in-browser and add schema.org Organization and LocalBusiness markup if applicable.
HTTPS	Confirmed	Site loads correctly over HTTPS. Certificate appears valid. No mixed content issues detected in the HTML shell.
Mobile Responsiveness	Unknown	Cannot verify from automated crawl. Test manually on iOS Safari and Android Chrome. Mobile-friendliness is a confirmed Google ranking factor.

04 Content Audit

Content Accessibility

Summary of what content could and could not be evaluated during this automated analysis. The JS rendering barrier blocked access to virtually all page content.

Page copy and messaging Not Accessible

Product and service descriptions Not Accessible

Call-to-action clarity and placement Not Accessible

Contact information Not Accessible

About page and company credibility signals Not Accessible

Blog or resources section Not Confirmed

Client testimonials or case studies Not Confirmed

Page title tag (root URL) Confirmed

Manual Review Required

A manual content audit is required to complete this picture. We recommend scheduling a working session to open the site in a browser and document every section, heading, CTA, form, image, and page in the current site. This inventory will form the foundation for the content migration plan when the new site is built.

05 Quick Wins

Immediate Action Checklist

Ten actions that can be started now, before any development work begins, to improve the site's baseline posture.

Add sitemap.xml and submit to Google Search Console

Add robots.txt with a Sitemap reference line

Run PageSpeed Insights at pagespeed.web.dev for a performance baseline

Run a Lighthouse audit in Chrome DevTools (Performance, Accessibility, SEO panels)

Add Open Graph meta tags to all routes (title, description, image)

Verify H1 uniqueness on all major routes by inspecting in-browser

Set up Google Search Console and verify the gsm808.com property

Check Core Web Vitals data in Google Search Console once property is verified

Add schema.org Organization markup to the root page

Review mobile display on iOS Safari and Android Chrome across all major routes

06 Priority Recommendations

Top 5 Priorities

The five highest-impact actions, ranked by urgency and potential SEO/business impact.

01 Critical Migrate Away from Pure Client-Side Rendering

The single largest barrier to organic growth is the SPA architecture. Until pages are server-rendered or pre-built, Google cannot index any content except the homepage title. Migrate to Next.js (App Router with SSR), Astro, or a comparable SSG solution. This is the prerequisite for all other SEO work.

02 High Add sitemap.xml and robots.txt Before Any Other SEO Work

These two files cost almost nothing to create and immediately signal to search engines that the site is professionally managed. The sitemap.xml should list every route with its last-modified date. The robots.txt should include a Sitemap line pointing to the sitemap URL.

03 High Run PageSpeed Insights and Lighthouse for a Performance Baseline

Without a baseline score, there is no way to measure improvement. Run both tools now against the current site, save the results, and use them to prioritize performance fixes during the new site build. Core Web Vitals scores directly influence Google's ranking signals.

04 Medium Conduct a Manual Content Inventory Session

Open every route of the current site in a browser and document what exists: headings, copy, images, CTAs, forms, and any embedded content. This inventory is the foundation for the content migration plan, copywriting brief, and new site information architecture.

05 Medium Implement Google Search Console and Bing Webmaster Tools

Both tools are free and provide direct visibility into how search engines see the site, including crawl errors, index coverage, and keyword impressions. Setting them up now ensures data is accumulating from the current baseline, making before-and-after comparisons possible once the new site launches.