If you run a hosting business, resell hosting plans, or manage websites for clients, you already know the drill: a client’s SSL cert quietly expires, an email campaign lands in spam because nobody checked SPF, or a domain migration goes sideways because DNS hadn’t finished propagating. These aren’t complicated problems — they’re just easy to miss until they’ve already caused a headache. That’s exactly the gap a good set of web hosting tools is supposed to close.
So we built a set of free web hosting tools to catch these problems before they do any damage. knkws.dev is a small, free toolkit for hosting and web service businesses — no credit card, just a free account. It now has seven web hosting tools in one dashboard, and four of them are brand new.
The Web Hosting Tools on knkws.dev
Every tool in the toolkit is built around the same idea: the checks a hosting business runs constantly should live in one place, be fast to use, and produce results you’d actually feel comfortable sending straight to a client. Here’s the full lineup of web hosting tools currently live on knkws.dev.
The three original web hosting tools cover the day-to-day basics:
- Uptime Monitor — add any domain and get an email the moment it goes down, and another when it’s back up.
- Reseller Hosting Profit Calculator — plug in your account count, pricing, and costs to see your real monthly margin, and save multiple pricing scenarios to compare side by side.
- Website Speed & SEO Snapshot — scan any URL for title tags, meta descriptions, mobile-readiness, HTTPS, and more, with a 0-100 score you can track over time.
And here are the four new web hosting tools we just added:
SSL Certificate Checker
Point this tool at any domain and it connects directly to the live certificate — not a cached record, not a third-party database that might be a few days stale. It shows you the exact expiry date, who issued it, and every domain it covers.
If a cert is expiring within 30 days, it flags it clearly in orange so you can renew before a client’s visitors start seeing browser security warnings. This is one of those web hosting tools that’s boring right up until the moment it isn’t.
An expired certificate on a client’s e-commerce site during a busy weekend is the kind of call nobody wants to get. Running this check proactively on every domain you manage, once a week or so, turns a potential emergency into a five-minute renewal.
DNS Propagation Checker
This is the tool you want open in a tab during any domain migration. It queries Google, Cloudflare, and Quad9’s public resolvers directly and shows you, side by side, whether they all agree on a domain’s current A record yet.
Propagation typically takes anywhere from a few minutes to up to 48 hours depending on TTL settings and resolver caching. Underneath that comparison, it also runs a full record lookup — A, AAAA, CNAME, MX, TXT, and NS.
That means you can sanity-check an entire DNS setup in one screen instead of running six separate lookups across six different sites. If you’ve ever had a client call mid-migration asking why their site “still isn’t working,” this is usually the fastest way to answer with an actual explanation instead of a guess.
Email Deliverability Checker
SPF, DKIM, and DMARC misconfiguration is one of the most common — and most invisible — reasons a client’s email ends up in spam instead of the inbox. This tool checks all three at once.
It shows whether SPF exists and how strict its policy is, whether DMARC is enforced or just sitting in monitoring mode, and whether DKIM shows up under any of the common provider selectors.
You get a 0-100 score and the raw records. So instead of telling a client “your email setup looks off,” you can show them exactly which record is missing and what a fix looks like. For hosting businesses that manage email on top of web hosting, this is often the single most requested troubleshooting step.
Blacklist & IP Reputation Checker
Enter a domain or an IP address and it’s checked in real time against five major spam blocklists — Spamhaus ZEN, SpamCop, Barracuda, SORBS, and SpamRATS.
If a shared IP has picked up a bad reputation from a noisy neighbor on the same server, this is usually the fastest way to find out before it starts affecting deliverability for everyone hosted on that IP.
It’s a quick check worth running any time a client reports email suddenly not arriving, especially on shared or reseller hosting where one bad actor can affect dozens of unrelated accounts. Of the seven web hosting tools in the toolkit, this is the one most people don’t think to check until something’s already gone wrong.
Who These Web Hosting Tools Are For
We built this toolkit with a few specific groups in mind, and if you fall into any of these, it’s probably worth five minutes to try it:
- Hosting resellers managing dozens or hundreds of client domains who need a fast way to check status without logging into WHM for every single lookup.
- Freelance web designers and developers who inherit hosting and DNS responsibility for client sites even though it’s not the core service they sell.
- Small agencies juggling client hosting, email, and uptime across multiple providers, where a single dashboard beats bookmarking six different single-purpose sites.
- Anyone running their own hosting business who wants to run the same checks a client would eventually ask about, before they ask.
How to Get Started With These Web Hosting Tools
Getting set up takes about as long as reading this section:
- Create a free knkws.dev account — no credit card, no trial period that quietly expires into a paid plan.
- From the dashboard, pick any of the seven web hosting tools and enter a domain or IP address.
- Read the result — each tool is built to explain what it found in plain language, not just dump raw DNS records at you.
- Bookmark the ones you’ll use often. Most hosting businesses end up leaning heavily on two or three of the seven depending on what they manage day to day.
Why We Built These Web Hosting Tools
Most of these checks already exist somewhere online. They’re scattered across a dozen different single-purpose sites, and most of those are cluttered with ads.
We wanted one place, built for people who actually run hosting and web businesses. The account is free, the tools are fast, and the results are something you could screenshot and send straight to a client without cleaning it up first.
It’s also, honestly, a bit of a shortcut for us. When a monitoring alert fires or a client asks “why is my email going to spam,” we open the same web hosting tools you would — they’re built to answer the questions we get asked most.
If you manage more than a handful of domains, having all of this in one dashboard instead of six browser tabs adds up fast, both in time saved and in fewer things falling through the cracks. That’s really the whole pitch behind these web hosting tools: fewer tabs, faster answers, and results you can trust enough to act on immediately.
Frequently Asked Questions
Are these web hosting tools really free?
Yes. All seven tools are free with a knkws.dev account. No credit card is required to sign up, and there’s no trial period that quietly converts to a paid plan.
Do I need to be a K & K Web Services hosting client to use them?
No. The web hosting tools on knkws.dev are open to anyone who creates a free account, regardless of who hosts your domains.
How often should I run these checks?
For the SSL Certificate Checker and Blacklist Checker, once a week per domain is usually enough to catch problems early. The DNS Propagation Checker is most useful during an active migration, and the Email Deliverability Checker is worth running any time you set up a new domain’s email or a client reports deliverability issues.
What if I manage a lot of client domains?
That’s exactly who these web hosting tools were built for. Running the same five or six checks across dozens of domains one at a time in scattered tools gets old fast — having them in a single dashboard is the whole point.
Try These Web Hosting Tools Yourself
All seven tools are free with a knkws.dev account — no credit card, no trial period that quietly expires.
If you’re already managing hosting for clients or running a reseller business, it’s worth five minutes to see what your own domains look like through these web hosting tools. Most people who try one end up using two or three regularly once they see how much time it saves compared to checking each thing manually.
And if any of the four new checks turn up something you’d rather not deal with yourself — an expiring cert, a shaky DNS setup, spam-folder email — that’s exactly the kind of thing K & K Web Services hosting handles as part of the plan. Between the web hosting tools and the hosting itself, the goal is the same either way: fewer surprises for you and for your clients.
