SEO report for www.unizar.es

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 unizar.es…

Indexing & crawling 88%

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

  robots.txt found.

  Googlebot is allowed to crawl this page.

• ✗

  XML sitemaphigh

  No XML sitemap found at /sitemap.xml or in robots.txt.

  Fix: Create an XML sitemap listing every page and submit it in Google Search Console.

  Make one with the free XML sitemap generator

  Read the guide: XML sitemaps

• ✓

  Canonical URLhigh

  Canonical: https://www.unizar.es/

  Points to this page (self-referencing).

• ✓

  Redirectshigh

  1 redirect before the page loaded.

  https://unizar.es/ → https://www.unizar.es/

  A single redirect to your preferred address is normal; just make sure your own links use the final address.

• ✓

  www / non-wwwmedium

  unizar.es redirects to www.unizar.es.

• ✓

  hreflangmedium

  1 hreflang link(s).

  All language codes are valid.

  No x-default (recommended for a language picker or fallback page).

Search snippet & sharing 38%

How the page looks in Google results and when shared.

• !

  Title tagcritical

  “Universidad de Zaragoza | Universidad de Zaragoza”

  About 463px of Google's ~580px desktop width.

  Repeated words: universidad, zaragoza.

  Fix: Write a unique title of roughly 50–60 characters with the main search phrase first.

  Preview and measure your title with the free title tag checker

  Read the guide: how to write title tags

• ✗

  Meta descriptionhigh

  No meta description – Google will pick text from the page.

  Fix: Write a 140–155 character description that answers the searcher's question and invites the click.

  Write one free with the AI title & description writer

  Read the guide: how to write meta descriptions

• ✗

  Open Graph & social cardsmedium

  Open Graph title or image missing.

  No twitter:card tag.

  Fix: Add og:title, og:description, og:image (1200×630 PNG/JPG, absolute URL) and twitter:card=summary_large_image.

  Make the tags with the free Open Graph generator

  Read the guide: does social media help SEO?

• ✓

  Faviconlow

  Favicon linked (Google shows it next to results).

• ✓

  Languagelow

  lang="es"

Content quality 42%

Is there enough clear, useful text that matches what the page targets?

• !

  Word countmedium

  331 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.

  Count words and keywords with the free word counter

  Read the guide: how to write SEO content

• i

  Readabilitymedium

  Reading-ease scores only work for English; this page is lang="es".

• ✓

  Topic focushigh

  2 of 2 title keywords appear in the main content.

• ✗

  H1 headingcritical

  No H1 heading.

  Fix: Use one H1 that states the page topic with its main keyword.

• !

  Heading structuremedium

  16 headings for 331 words – a lot for the amount of text.

  Levels are in order.

  Fix: Use H2s for main sections and H3s inside them, without skipping levels.

  Read the guide: the on-page SEO checklist

• !

  Text-to-code ratiolow

  7% of the HTML is visible text.

  Fix: Trim unused markup, inline scripts and builder bloat.

AI search readiness 50%

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.

  Make one with the free llms.txt generator

  Read the guide: do you need llms.txt?

• ✗

  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.

  Read the guide: how to write SEO content

• ✗

  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.

  Make the code with the free local business schema generator

  Read the guide: schema markup

• ✓

  Freshness signalsmedium

  The page shows when it was published or last updated.

• ✗

  Trust pages (E-E-A-T)medium

  Links found to contact; missing about and privacy.

  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).

  Make valid code with the free schema generator

  Read the guide: schema markup

• i

  Breadcrumbslow

  Home page – breadcrumbs not needed.

Links 90%

Internal linking, anchor text and broken links.

• ✓

  Internal linkinghigh

  137 internal and 302 external links.

• ✓

  Anchor text qualitymedium

  No link text points to two different pages.

• ✓

  Broken links (sample)high

  Checked 12 internal link(s).

  No broken links found.

• !

  Internal links to http://medium

  7 internal link(s) use http:// – each one goes through a redirect.

  Fix: Update internal links to use https:// (or relative links).

Performance 40%

Speed signals from the HTML and server. Real-user Core Web Vitals load below.

• !

  Server response (TTFB)high

  944 ms until the first response from our checker, including connection setup (Google rates TTFB good under 0.8 s, poor over 1.8 s).

  Fix: Use page caching or a CDN (e.g. Cloudflare) so HTML is served from the edge.

• !

  HTML sizemedium

  197 kB of HTML.

  Fix: Remove inline bloat, base64 images and unused markup.

• ✓

  Compressionmedium

  Compressed with gzip.

• ✗

  Render-blocking resourceshigh

  9 blocking script(s) and 99 stylesheet(s) in <head>.

  Fix: Add defer to scripts, inline critical CSS and load the rest asynchronously.

  Read the guide: Core Web Vitals

• ✗

  Scripts & third partiesmedium

  81 script tag(s); files loaded from 5 other domain(s): fonts.googleapis.com, tag.oniad.com, cdn-eu.readspeaker.com, static.addtoany.com, code.jquery.com.

  Fix: Remove unused tracking and widget scripts; every third party adds connection time.

  Read the guide: Core Web Vitals

• !

  Imagesmedium

  42 image(s).

  2 without width/height – can cause layout shift (CLS).

  28 image(s) after the first three aren't lazy-loaded.

  0 use WebP/AVIF or responsive srcset.

  Fix: Give every image width and height, lazy-load images below the fold (but not the main image) and serve WebP/AVIF.

  Read the guide: image SEO

• !

  Cachinglow

  Cache-Control: must-revalidate, no-cache, private

  Fix: Set Cache-Control so browsers and CDNs can reuse the page.

• 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

  HSTS: max-age=300

  max-age is under 6 months – browsers will forget it quickly.

  Fix: Add Strict-Transport-Security: max-age=63072000; includeSubDomains.

  Read the guide: the technical SEO checklist

• ✗

  Security headerslow

  Present: nosniff, clickjacking protection.

  Fix: Add X-Content-Type-Options, Referrer-Policy, Permissions-Policy and X-Frame-Options (or a CSP).

  Read the guide: the technical SEO checklist

• ✗

  Server fingerprintlow

  X-Powered-By reveals “PHP/8.2.35”.

  Fix: Remove X-Powered-By so attackers can't see your software versions.

Mobile & accessibility 67%

Usable on phones and by everyone – Google indexes the mobile version.

• ✓

  Mobile viewportcritical

  viewport: width=device-width, initial-scale=1

• ✗

  Image alt textmedium

  8 of 42 images have no alt attribute.

  Fix: Describe each meaningful image in its alt attribute (use alt="" for decorative ones).

  Read the guide: image SEO

• ✗

  Form labelsmedium

  1 of 1 form field(s) have no label.

  Fix: Give every form field a <label> or aria-label (a placeholder isn't a label).

• ✓

  Link nameslow

  Every link has a readable name.

• ✓

  Tap-to-contactmedium

  One-tap contact: email.

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.

• ✓

  Contact details on pagemedium

  No phone number found.

  No postcode found (fine for service-area businesses).

  An email link is shown.

• i

  Map & directionslow

  No map or directions link.