njas.ng
Nigerian Journal of Applied Science (NJAS) — ISSN 0795-1353
1 failed · 9 warnings · 18 passed
Audited Tue, 14 Jul 2026 10:30:52 GMT · https://njas.ng/
Meta & Head
17.4/25
Title, description, canonical, social tags — what search engines read first.
Open Graph tagsmedium impactlow effort
No Open Graph tags found
Open Graph tags control how your page looks when shared on Facebook, LinkedIn, Slack, WhatsApp, and most chat apps; without them, links render as a bare URL or with guessed text, and far fewer people click through. Add four meta tags to <head>: og:title, og:description, og:url, and og:image — an image around 1200x630 pixels works well across platforms. Use absolute https:// URLs for og:image and og:url; relative paths are the most common reason preview images silently fail to appear.
Meta descriptionhigh impactlow effort
Meta description is "Nigerian Journal of Applied Science (NJAS) is a quarterly, multi-disciplinary peer-reviewed journal covering all aspects of applied science. Published at the University of Benin, Benin City, Nigeria." (199 characters)
Search engines truncate descriptions past roughly 160 characters, and very short ones waste the snippet space that persuades searchers to pick your listing over the next one. Rewrite it to 70–160 characters: state what the page offers, work the primary keyword in naturally (matching words get bolded in results), and end with a benefit or call to action. Don't cram in keywords — the description influences clicks, not rankings, so write it for humans.
Canonical URLmedium impactlow effort
No <link rel="canonical"> found
When the same page is reachable at several URLs — tracking parameters, trailing-slash variants, http vs https — search engines may split ranking signals across the duplicates. A canonical tag names the one version that should get all the credit. Add <link rel="canonical" href="https://www.example.com/page/"> to the <head>, pointing at the page's preferred absolute URL. Double-check it's self-referencing on the primary version: a canonical that points at the wrong page can quietly de-index the right one.
Faviconlow impactlow effort
No <link rel="icon"> and /favicon.ico does not respond
Google displays favicons beside mobile search results, and browsers show them in tabs, bookmarks, and history — a missing icon makes your listing look generic and less trustworthy next to competitors. Create an icon of at least 48x48 pixels, serve it at /favicon.ico, and reference it with <link rel="icon" href="/favicon.png" type="image/png"> in <head>. Make sure robots.txt doesn't block the icon's path — search engines must be able to crawl it to display it.
Twitter card taglow impactlow effort
No twitter:card meta tag found
X (Twitter) layers its own card markup on top of Open Graph, and without a twitter:card tag your shared links may render as plain text instead of a large image preview. Add <meta name="twitter:card" content="summary_large_image"> alongside your Open Graph tags; X will fill in the title, description, and picture from og:title, og:description, and og:image. Keep og:image an absolute URL — a relative or missing image is the usual reason cards show up without a picture.
4 passing checks
- Title tag<title> is "Nigerian Journal of Applied Science (NJAS) — ISSN 0795-1353" (59 characters)
- Viewport meta tagViewport is "width=device-width, initial-scale=1.0"
- Character encoding declaredCharacter encoding is declared
- Page allows indexingNo restrictive robots meta tag
Content & Structure
22.3/25
Headings, copy depth, images, structured data, internal linking.
Structured data (JSON-LD)medium impactmedium effort
No JSON-LD structured data blocks found
Structured data makes your listing eligible for rich results — star ratings, FAQs, breadcrumbs, product prices — which occupy more space on the results page and draw more clicks than plain blue links. Add a <script type="application/ld+json"> block with a schema.org type that matches the page: Organization or WebSite for a homepage, Article for posts, Product for product pages. Only mark up content actually visible on the page — markup for invisible content violates Google's guidelines and can earn a manual action.
Heading hierarchylow impactlow effort
Heading level jumps from h1 ("Advancing applied science research from Nigeria to the world") to h3 ("Nigerian Journal of Applied Science")
Headings form the page's outline; when levels jump (h2 straight to h4), search engines and screen readers get a broken table of contents and the relationship between sections turns ambiguous. Fix the jump by stepping down one level at a time — promote the deeper heading, or add the missing intermediate level. The usual cause is choosing heading tags for their default font size; set sizes in CSS instead and let the tags reflect actual document structure.
5 passing checks
- Single H1 heading1 h1 found: "Advancing applied science research from Nigeria to the world"
- Word count1613 words of visible text
- HTML lang attribute<html lang="en">
- JavaScript-dependent contentvisible text ~15427 chars in the initial HTML
- Internal linking26 internal, 0 external links
Technical
22.2/25
HTTPS, redirects, robots, sitemap, speed, crawlability.
HTTP redirects to HTTPSmedium impactlow effort
http:// version serves content without redirecting
Your http:// URLs serve content instead of redirecting, so search engines can crawl and index two parallel copies of every page and split ranking signals between them. Add a permanent 301 redirect from http to https at the server or CDN level — in nginx, "return 301 https://$host$request_uri;" in the port-80 server block; in Apache, a RewriteRule in .htaccess; on Cloudflare, enable "Always Use HTTPS". Use a 301, not a 302 — temporary redirects don't consolidate ranking signals — and preserve the full path in the redirect target.
XML sitemap availablemedium impactlow effort
no sitemap.xml found
Without an XML sitemap, search engines discover pages only by following links, so new, deep, or weakly linked pages get found slowly or not at all. Generate one at /sitemap.xml — most frameworks and CMSs have a generator built in or as a plugin — listing every canonical, indexable URL, then add "Sitemap: https://www.example.com/sitemap.xml" to robots.txt and submit it in Google Search Console. Keep it clean: listing redirected, noindexed, or 404 URLs erodes crawler trust in the whole file.
Response compression enabledlow impactlow effort
no content-encoding header
This HTML is served uncompressed, so every visitor downloads far more bytes than necessary — text compresses extremely well, and the savings directly speed up first render on slow connections. Enable Brotli or gzip on your server or CDN: in nginx it's "gzip on;" (or the brotli module), in Apache it's mod_deflate via .htaccess, and on most CDNs it's a single toggle. Make sure compression covers all text types (HTML, CSS, JS, JSON, SVG), but skip already-compressed images — recompressing them wastes CPU for no gain.
9 passing checks
- Served over HTTPSfinal URL uses https://
- No mixed content0 http:// subresource references
- Short redirect chainno redirects; URL resolves directly
- robots.txt present and permissiverobots.txt exists and allows crawling
- Fast time to first byte479 ms
- Reasonable HTML size31.8 KB
- Missing pages return 404missing paths return HTTP 404/410
- www and non-www resolve consistentlywww and non-www converge on the same host
- HTML5 doctype<!DOCTYPE html> present
Performance
Core Web Vitals scoring via Google PageSpeed is coming soon.
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