iknowpeptides.com
IKnowPeptides — Learn Peptide Science
2 failed · 6 warnings · 21 passed
Audited Mon, 20 Jul 2026 01:00:18 GMT · https://iknowpeptides.com/
Meta & Head
19.4/25
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.
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.
5 passing checks
- Title tag<title> is "IKnowPeptides — Learn Peptide Science" (37 characters)
- Meta descriptionMeta description is "Clear, research-focused peptide education. Understand mechanisms, evaluate evidence, and navigate the science without the hype." (127 characters)
- Viewport meta tagViewport is "width=device-width, initial-scale=1"
- Character encoding declaredCharacter encoding is declared
- Page allows indexingNo restrictive robots meta tag
Content & Structure
20.3/25
Headings, copy depth, images, structured data, internal linking.
Image alt textmedium impactlow effort
0 of 20 images have alt text
Alt text is how search engines understand what an image shows — it feeds image-search rankings and is what screen readers announce to blind visitors. Add a short, specific alt attribute to every meaningful image, describing the content rather than listing keywords: alt="Golden retriever puppy playing in snow" beats alt="dog puppy pet animal". Give purely decorative images an empty alt="" instead of omitting the attribute, so assistive technology knows to skip them rather than reading out the filename.
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.
6 passing checks
- Single H1 heading1 h1 found: "Understand Peptides.Without the Hype."
- Heading hierarchy33 headings in order without skipped levels
- Word count3440 words of visible text
- HTML lang attribute<html lang="en">
- JavaScript-dependent contentvisible text ~6164 chars in the initial HTML
- Internal linking57 internal, 1 external links
Technical
23.3/25
HTTPS, redirects, robots, sitemap, speed, crawlability.
XML sitemap availablemedium impactlow effort
sitemap.xml is valid but robots.txt does not reference it
Your sitemap is valid, but robots.txt never mentions it, so crawlers you haven't manually notified may never find it — the robots.txt reference is the universal discovery mechanism. Add one line to robots.txt: "Sitemap: https://www.example.com/sitemap.xml", using the full absolute URL (a relative path is invalid here). The line can go anywhere in the file, and you can list several sitemaps. Also submit it in Google Search Console to get indexing-coverage reporting on top of discovery.
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.
10 passing checks
- Served over HTTPSfinal URL uses https://
- HTTP redirects to HTTPShttp:// redirects to 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 byte690 ms
- Reasonable HTML size151.9 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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