SEO report for js.org
https://js.org/ · checked Sun, 01 Nov 2026 14:05 GMT
Fix these first
- H1 headingcritical
No H1 heading.
Fix: Use one H1 that states the page topic with its main keyword.
- Entity clarityhigh
No Organization / LocalBusiness structured data – search engines and AI have to guess who runs this site.
Fix: Add Organization or LocalBusiness JSON-LD with name, url, logo, contact details and sameAs links to your official profiles.
- JSON-LD present & validhigh
No JSON-LD structured data.
Fix: Add JSON-LD describing the business and the page (Organization/LocalBusiness, WebSite, WebPage or Article, BreadcrumbList).
- Question-led contentmedium
No headings phrased as questions.
Fix: Add headings that match real questions ("How much does…?") followed by a direct one- or two-sentence answer – an easy format for search and AI answers to quote.
- Freshness signalsmedium
No published/updated date found.
Fix: Show a 'last updated' date and add dateModified to your structured data.
- Trust pages (E-E-A-T)medium
Links found to privacy; missing about and contact.
Fix: Link to About, Contact and Privacy pages from every page – they help visitors, Google and AI tools see who stands behind the content.
- HSTSmedium
No Strict-Transport-Security header.
Fix: Add Strict-Transport-Security: max-age=63072000; includeSubDomains.
- Tap-to-contactmedium
No tel: or mailto: links.
Fix: Add a tap-to-call or tap-to-email button so phone visitors can contact you instantly.
Real-world speed Google PageSpeed
Loading Core Web Vitals from Google… this can take up to 30 seconds.
Authority & backlinks
Looking up which websites link to js.org…
Indexing & crawling 81%
Can search engines reach, read and index this page?
- ✓
Status codecritical
The page returned HTTP 200.
- ✓
Indexablecritical
No noindex instruction – the page can appear in search.
- !
robots.txthigh
No robots.txt found (HTTP 404) – crawlers may read everything.
Googlebot is allowed to crawl this page.
Fix: Add a robots.txt that allows crawling and lists your sitemap.
- !
XML sitemaphigh
Sitemap found at https://js.org/sitemap.xml with 6 URLs.
Not declared in robots.txt.
This page is listed in it.
No lastmod dates – add accurate ones so search engines know what changed.
Fix: Add a 'Sitemap:' line to robots.txt, list every indexable page and include accurate lastmod dates.
- !
Canonical URLhigh
Canonical: https://js.org/index.html
Points to a DIFFERENT address – Google will probably index that one instead of this page.
Fix: Add <link rel="canonical" href="(this page's full URL)"> – only point it elsewhere for true duplicates.
- ✓
Redirectshigh
Loads directly with no redirects.
- ✓
www / non-wwwmedium
www.js.org redirects to js.org.
Search snippet & sharing 88%
How the page looks in Google results and when shared.
- ✓
Title tagcritical
“JS.ORG - the JavaScript organization”
About 333px of Google's ~580px desktop width.
- !
Meta descriptionhigh
60 characters, ~400px of ~990px.
Short – sell the click with a benefit and a call to action.
Google sometimes rewrites descriptions to match the search; a good one is still used most often.
Fix: Write a 140–155 character description that answers the searcher's question and invites the click.
- ✓
Faviconlow
Favicon linked (Google shows it next to results).
- ✓
Languagelow
lang="en"
Content quality 50%
Is there enough clear, useful text that matches what the page targets?
- !
Word countmedium
310 words of main content (inside <main>).
Google has no minimum word count – this is a rough guide to whether the page answers the question in full.
Fix: Add genuinely useful content: key service pages usually need 400+ words to answer what customers ask.
- ✓
Readabilitymedium
Flesch reading ease 69 (plain English), about 14 words per sentence.
- !
Topic focushigh
2 of 3 title keywords appear in the main content (missing: organization).
Fix: Use your main title phrases naturally in the opening paragraph and headings.
- ✗
H1 headingcritical
No H1 heading.
Fix: Use one H1 that states the page topic with its main keyword.
- ✓
Heading structuremedium
4 headings for 310 words.
Levels are in order.
- ✓
Text-to-code ratiolow
11% of the HTML is visible text.
AI search readiness 38%
Can ChatGPT, Claude, Perplexity and Google AI Overviews read, understand and cite this site?
- ✓
AI crawler accesshigh
Search and AI-search crawlers (Googlebot, Bingbot, OAI-SearchBot, Claude-SearchBot, PerplexityBot…) can read this page.
- ✓
Snippet controlshigh
No snippet restrictions – search and AI answers can quote this page.
- ✗
llms.txtlow
No /llms.txt file. It's an optional, emerging convention – few AI tools are confirmed to read it yet, so this is low priority.
Fix: Optionally add /llms.txt: a short Markdown summary of who you are with links to your key pages.
- ✗
Question-led contentmedium
No headings phrased as questions.
Fix: Add headings that match real questions ("How much does…?") followed by a direct one- or two-sentence answer – an easy format for search and AI answers to quote.
- ✗
Entity clarityhigh
No Organization / LocalBusiness structured data – search engines and AI have to guess who runs this site.
Fix: Add Organization or LocalBusiness JSON-LD with name, url, logo, contact details and sameAs links to your official profiles.
- ✗
Freshness signalsmedium
No published/updated date found.
Fix: Show a 'last updated' date and add dateModified to your structured data.
- ✗
Trust pages (E-E-A-T)medium
Links found to privacy; missing about and contact.
Fix: Link to About, Contact and Privacy pages from every page – they help visitors, Google and AI tools see who stands behind the content.
Structured data 0%
Machine-readable facts for rich results and AI.
- ✗
JSON-LD present & validhigh
No JSON-LD structured data.
Fix: Add JSON-LD describing the business and the page (Organization/LocalBusiness, WebSite, WebPage or Article, BreadcrumbList).
Links 81%
Internal linking, anchor text and broken links.
- !
Internal linkinghigh
3 internal and 11 external links.
Fix: Link to your most important pages from this page with descriptive text.
- ✓
Anchor text qualitymedium
No link text points to two different pages.
- ✓
Broken links (sample)high
No internal links to test.
Performance 100%
Speed signals from the HTML and server. Real-user Core Web Vitals load below.
- ✓
Server response (TTFB)high
52 ms until the first response from our checker, including connection setup (Google rates TTFB good under 0.8 s, poor over 1.8 s).
- ✓
HTML sizemedium
17 kB of HTML.
- ✓
Compressionmedium
Compressed with gzip.
- ✓
Render-blocking resourceshigh
0 blocking script(s) and 0 stylesheet(s) in <head>.
- ✓
Scripts & third partiesmedium
4 script tag(s); files loaded from 2 other domain(s): cdn.carbonads.com, m.servedby-buysellads.com.
- ✓
Imagesmedium
No <img> tags.
- ✓
Cachinglow
Cache-Control: max-age=600
- i
HTTP/3low
Couldn't be confirmed from our server – the alt-svc header that advertises HTTP/3 isn't always visible to it. Your site is on Cloudflare, which offers HTTP/3 under Network settings.
Security 75%
Visitor safety signals that browsers and Google check.
- ✓
HTTPScritical
Secure HTTPS with no mixed content.
- ✓
HTTP → HTTPS redirecthigh
http:// redirects to https://.
- ✗
HSTSmedium
No Strict-Transport-Security header.
Fix: Add Strict-Transport-Security: max-age=63072000; includeSubDomains.
- ✗
Security headerslow
Present: none.
Fix: Add X-Content-Type-Options, Referrer-Policy, Permissions-Policy and X-Frame-Options (or a CSP).
- ✓
Server fingerprintlow
No X-Powered-By header (server: cloudflare).
Mobile & accessibility 83%
Usable on phones and by everyone – Google indexes the mobile version.
- ✓
Mobile viewportcritical
viewport: width=device-width,initial-scale=1
- ✓
Image alt textmedium
No images.
- ✓
Form labelsmedium
All 4 form fields are labelled.
- ✓
Link nameslow
Every link has a readable name.
- ✗
Tap-to-contactmedium
No tel: or mailto: links.
Fix: Add a tap-to-call or tap-to-email button so phone visitors can contact you instantly.
Local SEO not scored
This site doesn't look like a local business, so these checks are shown for information and not scored.
- i
LocalBusiness markuphigh
No LocalBusiness structured data.
- i
Contact details on pagemedium
No phone number found.
No postcode found (fine for service-area businesses).
- i
Map & directionslow
No map or directions link.