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An independent audit of spamhaus.org, measured by Adnave on November 13, 2026. We read 12 pages of the site as a search engine first receives them and ran 53 checks. Organic health is 85 out of 100. The site lets the main AI assistants read it.
Growth Navigator · spamhaus.org
13 opportunities to improve
12 pages read in full, 30 more links checked
Organic health
out of 100
Ads readiness
out of 100
Our suggested order: biggest obstacles first, quickest first among equals. The effect of each fix is not measured. 3 take minutes.
Step 1 · Organic
Everything here was observed on the site. Fixing it removes a known obstacle; no one can promise a specific ranking in return.
Observed · AdnaveBot's reading of 12 pages on 2026-11-13 · each finding is what we saw on those pages; “what to do”, the score and the order are our judgment
The page has no H1 heading, so search engines get no clear statement of its topic.
What to do: Add one H1 near the top that states the main topic in plain words.
How to fix this: How to write page titles and meta descriptionsStructured data found: WebSite, WebPage, ReadAction.
What to do: Add schema.org markup for the organisation, plus the type that fits the page: Product, Service, Article, FAQPage or SoftwareApplication.
Paste inside the <head> of the page. Fill in the name and logo address.
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "spamhaus.org",
"url": "https://www.spamhaus.org",
"logo": "https://www.spamhaus.org/your-logo.png"
}
</script>Google will choose its own snippet for these pages, often a poor one.
What to do: Add a description of 70 to 160 characters to each page.
When someone shares the page, the preview will look bare or use the wrong image.
What to do: Add Open Graph tags: og:title, og:description and an og:image of 1200 × 630 pixels.
Paste inside the <head> of the page. Replace the image address with a picture of 1200 by 630 pixels.
<meta property="og:type" content="website"> <meta property="og:title" content="Strengthening trust and safety across the internet | Spamhaus"> <meta property="og:description" content="Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community collaboration."> <meta property="og:url" content="https://www.spamhaus.org/"> <meta property="og:image" content="https://www.spamhaus.org/your-preview-image.png"> <meta name="twitter:card" content="summary_large_image">
Without a width and height, the page shifts as each image arrives. That is the layout shift Core Web Vitals penalise.
What to do: Add width and height attributes to every image tag.
How to fix this: Image SEO: alt text, file size and layout shiftThat is heavy for the page code alone, before any images load.
What to do: Remove unused code and inline data, and load non-essential parts later.
How to fix this: Core Web Vitals: how to make a slow website fastSearch engines and screen readers use a link's words to understand the page it leads to. “Learn more” tells them nothing.
What to do: Reword each link to name its destination, for example “See our pricing” instead of “Learn more”.
A field with no label is announced to screen-reader users as just “edit text”, and placeholder text disappears as soon as someone types. Clear labels also raise form completion.
What to do: Give each field a <label for="its-id">, or an aria-label if the design has no room for visible text.
Links shared on X will show as plain text.
What to do: Add a twitter:card meta tag (summary_large_image works for most pages).
Paste inside the <head> of the page. Replace the image address with a picture of 1200 by 630 pixels.
<meta property="og:type" content="website"> <meta property="og:title" content="Strengthening trust and safety across the internet | Spamhaus"> <meta property="og:description" content="Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community collaboration."> <meta property="og:url" content="https://www.spamhaus.org/"> <meta property="og:image" content="https://www.spamhaus.org/your-preview-image.png"> <meta name="twitter:card" content="summary_large_image">
Assistants quote pages that state a question and answer it plainly. This page has no question-style headings.
What to do: Add a short section of real customer questions as headings, each answered in two or three sentences.
How to fix this: AI search readiness: how to be found by AI assistantsHeadings are the page's outline. When levels are skipped (a heading 2 followed by a heading 4), screen readers and search engines get a broken outline.
What to do: Use heading levels in order: one H1, then H2 for sections, H3 inside those. Style size with CSS, not by choosing a different level.
The page does not declare a favicon.
What to do: Add a favicon link so your brand shows in tabs, bookmarks and mobile results.
Paste inside the <head> of the page. Put the icon file at that address first.
<link rel="icon" href="/favicon.ico">
An optional plain-text summary of the site for AI assistants. It is cheap to add, but there is no evidence yet that it changes how often a site is cited.
What to do: Optionally add /llms.txt with a short description of the site and links to its most important pages.
Optional. Save as llms.txt at the top level of the site. Edit the first lines to describe what you do.
# Strengthening trust and safety across the internet | Spamhaus > Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community collaboration. ## Pages - [Strengthening trust and safety across the internet | Spamhaus](https://www.spamhaus.org/) - [Resource Hub | News, blogs & reports | Spamhaus](https://www.spamhaus.org/resource-hub/) - [DNS Blocklists | Blogs, news articles and reports | Spamhaus](https://www.spamhaus.org/resource-hub/dnsbl/) - [IP and domain reputation | Blogs, news articles and reports | Spamhaus](https://www.spamhaus.org/resource-hub/ip-domain-reputation/) - [Malware | Blogs, news articles and reports | Spamhaus](https://www.spamhaus.org/resource-hub/malware/) - [Service providers | Blogs, news articles and reports | Spamhaus](https://www.spamhaus.org/resource-hub/service-providers/) - [Threat intelligence | Blogs, news articles and reports | Spamhaus](https://www.spamhaus.org/resource-hub/threat-intelligence/) - [Events | Where you can connect with Spamhaus](https://www.spamhaus.org/events/) - [FAQs | Deliverability, DNSBLs, Malware & reputation data](https://www.spamhaus.org/faqs/) - [Glossary | Technical internet terms | Spamhaus](https://www.spamhaus.org/glossary/) - [Restrict Port 25](https://www.spamhaus.org/restrict-port-25/) - [Sender Guidelines | Spamhaus](https://www.spamhaus.org/sender-guidelines/)
“Strengthening trust and safety across the internet | Spamhaus”
“Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community collaboration.”
Subheadings help readers and search engines scan the page.
The page gives search engines real content to work with.
Alt text helps image search and screen-reader users.
Without the doctype line, browsers fall back to an old rendering mode and layouts can break.
Without it, accented letters and symbols can show as garbled text, in the browser and in search results.
Search engines treat this kind of redirect as a weak signal and visitors see a flash of the old page. It also breaks the back button.
An icon-only link or button with no text is invisible to screen readers and tells search engines nothing about where it leads.
Visitors and search engines get a secure connection.
Nothing on the page blocks it from being indexed.
The page declares a mobile viewport.
https://www.spamhaus.org/
Search engines and screen readers know which language to expect.
Search engines have instructions for crawling the site.
Search engines have a list of your pages.
1 structured data block found.
Visitors who type http:// are moved to https automatically.
Both forms end at www.spamhaus.org.
A made-up address correctly returns a 404, so search engines can drop dead pages.
Browsers are told to always use the secure connection and not to guess file types.
Images, scripts and styles all load over https.
That is quick.
Scripts are loaded without delaying what visitors see.
The server shrinks the page before sending it.
Nothing in robots.txt shuts out the crawlers behind ChatGPT, Claude, Perplexity or Gemini.
Every internal link we followed loads.
Checked 11 other pages.
Checked 11 other pages.
Checked 11 other pages.
Checked 11 other pages.
Checked 11 other pages.
Checked 11 other pages.
Checked 11 other pages.
Checked 11 other pages.
| Page | Response | Time | Words |
|---|---|---|---|
Strengthening trust and safety across the internet | Spamhaus https://www.spamhaus.org/ | 200 | 0.04s | 465 |
Resource Hub | News, blogs & reports | Spamhaus https://www.spamhaus.org/resource-hub/ | 200 | 0.16s | 1,011 |
DNS Blocklists | Blogs, news articles and reports | Spamhaus https://www.spamhaus.org/resource-hub/dnsbl/ | 200 | 0.07s | 1,154 |
IP and domain reputation | Blogs, news articles and reports | Spamhaus https://www.spamhaus.org/resource-hub/ip-domain-reputation/ | 200 | 0.32s | 698 |
Malware | Blogs, news articles and reports | Spamhaus https://www.spamhaus.org/resource-hub/malware/ | 200 | 0.24s | 591 |
Service providers | Blogs, news articles and reports | Spamhaus https://www.spamhaus.org/resource-hub/service-providers/ | 200 | 0.07s | 1,084 |
Threat intelligence | Blogs, news articles and reports | Spamhaus https://www.spamhaus.org/resource-hub/threat-intelligence/ | 200 | 0.18s | 703 |
Events | Where you can connect with Spamhaus https://www.spamhaus.org/events/ | 200 | 0.02s | 216 |
FAQs | Deliverability, DNSBLs, Malware & reputation data https://www.spamhaus.org/faqs/ | 200 | 0.13s | 619 |
Glossary | Technical internet terms | Spamhaus https://www.spamhaus.org/glossary/ | 200 | 0.15s | 5,507 |
Restrict Port 25 https://www.spamhaus.org/restrict-port-25/ | 200 | 0.05s | 1,735 |
Sender Guidelines | Spamhaus https://www.spamhaus.org/sender-guidelines/ | 200 | 0.09s | 3,203 |
Step 2 · Ads
Ads only pay off when the site can measure what they bring in. We look for tracking tags in the page code; tags that load later, through a consent banner or tag manager, will not show up here.
Without analytics you cannot see where visitors come from or what they do. A Tag Manager container is present, so it may be loaded from there, which this check cannot see.
What to do: Set up Google Analytics 4 and add its tag to every page.
How to fix this: What to set up before you spend on adsGoogle Ads cannot learn which clicks turn into customers without it. A Tag Manager container is present, so it may be loaded from there, which this check cannot see.
What to do: Create a conversion action in Google Ads and add the tag, or import conversions from Analytics.
How to fix this: What to set up before you spend on adsFacebook and Instagram ads need the Pixel to track sales and build audiences. A Tag Manager container is present, so it may be loaded from there, which this check cannot see.
What to do: Create a Pixel in Meta Events Manager and add it to every page.
How to fix this: What to set up before you spend on adsTikTok ads need the Pixel to measure results and optimize delivery. A Tag Manager container is present, so it may be loaded from there, which this check cannot see.
What to do: Create a Pixel in TikTok Ads Manager and add it to every page.
How to fix this: What to set up before you spend on adsAudit run on . It reads up to 12 pages (60 with a free account) as a search engine first receives them and checks further internal links for errors. Scores are a weighted share of the checks passed.
Run the same audit on your own site, free. No sign-up needed.
This page reports only what our audit observed on public pages of spamhaus.org. Adnave is not affiliated with it. If you run this site and something here is wrong, run a fresh audit and tell us.