Monthly
TagFrog Pro
$75/mo per store
All 11 ad and analytics platforms server-side, consent, feeds. Watch included when it launches.
See TagFrog ProFree tools/16 checks live
Check any website in ten seconds.
Free, no login, 16 checks on one page. Security headers, tracking, SEO, what the site runs, whether it is up. Every result ends with the fix.
Runs all 16 site checks at once and puts every result on one page. No login, nothing stored about you.
Then do something about it.
Every result ends with a fix. Ask by email and we send a payment link. Self-serve, 14-day refund, cancel in one click, no calls.
Monthly Coming soon
Watch
$19/mo per site
Every tool re-run weekly. One email when the answer changes.
Join the waitlist Agencies
Territory
$49/mo at opsblu.com
Every local business in a metro, with the same checks already run. Sold by OpsBlu.
See OpsBlu pricing Free
Free
$0
Every tool, the Infrasight lookup and TagFrog on GA4. No login.
Check a siteHow it fits together.
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Find what is broken
Paste a URL. 16 checks run at once. Each one says what it found and how to fix it.
Run the checks → -
Fix it
TagFrog Pro for the tracking. A $149 container if you run GTM yourself. A $499 website if the business has none yet.
See the prices → -
Keep it fixed
Watch re-runs every check weekly and emails you only when the answer changes. $19/mo per site, included with TagFrog Pro when it launches.
About Watch →
Agencies
Sell it. The same checks, already run for every business in your territory, as OpsBlu records. See a territory →
- 16 free checks live today, no login, no email
- 3,127 technologies recognised by the Infrasight lookup, from one fetch
- 18M+ websites fingerprinted the same index OpsBlu publishes; the count grows every week
Free tools.
One URL in, one answer out. The box above runs all 16 checks at once; each of these runs on its own. All tools, including the calculators
Security headers check
LiveSecurity headers checker. Grades HSTS, CSP, X-Frame-Options, nosniff, Referrer-Policy, Permissions-Policy and cookie flags for any URL and shows the exact header to add.
robots.txt tester
LiveRobots.txt tester. Parses every rule, shows what Googlebot and other crawlers can reach, flags a site-wide Disallow and checks your Sitemap lines.
Sitemap validator
LiveXML sitemap validator. Finds and parses your sitemap or sitemap index, counts URLs, checks hosts, lastmod dates and size limits, and samples listed pages for errors.
SERP preview
LiveGoogle SERP preview. See how your title and meta description render in search results, where they truncate, and whether canonical, robots and Open Graph tags are set.
Website carbon footprint
LiveWebsite carbon calculator. Measures the bytes one page view transfers, converts it to grams of CO2, grades the page A+ to F and lists the heaviest resources.
Image bloat scan
LiveImage bloat scanner. Lists every image on a page with its bytes, format and dimensions, sorted by how much you would save with WebP and correct sizing.
Tag drag race
LiveTag drag race. Ranks every third-party script on your page by the load time and bytes it costs, finds duplicates and blocking tags, and shows what is worth keeping.
Tracking audit
LiveTracking audit. Shows every analytics and ad platform firing on a page, their IDs, how they load, and whether consent mode and your cookie banner actually gate them.
GTM analyzer
LiveGTM container analyzer. Enter a site URL or GTM ID and see every tag, trigger and variable, what fires, dead and duplicate tags, consent settings and destinations. No login.
SEO score
LiveOn-page SEO score. Checks title, description, headings, canonical, robots, structured data, alt text, links and indexability for any URL and tells you what to fix.
Site health check
LiveWebsite health check. Finds broken links, mixed content, missing favicon, soft 404s, missing contact and privacy pages and other basics a visitor or crawler trips over.
Security audit
LiveWebsite security audit. Checks TLS and certificate expiry, DNS and email authentication records, exposed admin and backup paths, version leaks and security headers from the outside.
Is it up?
Live"Is it up" check. Tests http, https, www and bare domain, follows every redirect and shows status, final URL and response time for each variant.
Performance score (Lighthouse)
LiveLighthouse test for mobile and desktop: the median of 5 runs each, Core Web Vitals, and the biggest savings on the page with how to fix them.
Accessibility check (axe)
LiveWebsite accessibility check with axe-core: WCAG 2.1 AA violations on the rendered page, grouped by rule, with the fix and example elements.
What does this site run?
LiveTechnology lookup. See the CMS, frameworks, analytics, pixels, hosting, CDN and widgets any website runs, with versions, matched against 3,000+ technologies.
Questions
Is it free?
Yes. 16 checks run now with no login and no email. The only limit is a per-address rate cap so one script cannot hog the service. Three more checks that need a browser render (Lighthouse, accessibility, contrast) are queued and ask for an email to send the result to.
What happens to the URL I enter?
We fetch the page once, the way a browser would, run the check, and cache the result for a few minutes so repeat runs are instant. Nothing about you is stored. The result for a domain may be kept so the next person who checks it gets an answer without a fetch.
What do you sell?
Four things, all self-serve. TagFrog Pro ($75/mo per store) fixes the tracking. Watch ($19/mo per site) re-runs the checks weekly and alerts on change. A website ($499 build + $39/mo) for a business with no site yet, or one that scored badly. A GTM container ($149 single store / $399 agency team, one-time) if you run GTM yourself. Every one has a 14-day no-questions refund and cancels in one click.
How do the free tools relate to OpsBlu?
Same company, two doors. BlueFrog Analytics is where a site owner checks one site and fixes it. OpsBlu keeps the same checks on file for every local business in a metro and sells the records to agencies from $49 a month per territory.
Do I have to talk to anyone?
No. Nothing on this site needs a call to buy, set up or cancel. If a page does not answer your question, email hello@bluefroganalytics.com and a person replies within one business day.
Start with the check.
Free, ten seconds, no login. It tells you which of the four fixes you need, if any.