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Http error: 304 Not Modified

304 Not Modified
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The 304 not modified code is a response status code that indicates that the requested resource has not been modified since the last time it was requested. This is often used in caching scenarios to improve performance by avoiding the need to send duplicate data over the network.

The cause of a 304 code can be anything that results in the server not being able to send a 200 OK response, such as a network error or the server being down. To fix a 304 code, you will need to check the server’s logs to see what is causing the problem and then take appropriate action to fix it.

Here is an example of a 304 not modified code: 

HTTP/1.1 304 Not Modified

Cache-Control: max-age=86400

Expires: Mon, 28 Sep 2020 23:59:59 GMT

How to Fix an HTTP 304 Not Modified Status Code

If you see 304 not modified responses in your server logs, there are a few potential causes:

  1. The requested resource has not been modified since the last time it was requested.
  2. The server is unable to send a 200 OK response for some reason (e.g., network error or server down).
  3. The server is configured to return a 304 not modified code in certain situations (e.g., caching scenarios).

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Imran Selimkhanov | Founder at Productive Shop

Imran Selimkhanov

Founder

"In a digital world, a company’s sales footprint is only as large as its digital market exposure." Backstory My perspective on growth was forged at 18 in an Armoured Reconnaissance unit of the Canadian Armed Forces. While that time taught me about preparation and mission-focus, the deepest lesson was about people. I learned early on that the difference between success and total failure is the integrity of the person standing next to you. Since then, through over a decade navigating the complexities of startups, consultancies, and financial institutions, I’ve developed a visceral "allergy" to the masqueraders—those who look the part but aren't "in it." In the high-stakes world of B2B SaaS, there is no room for the non-craftsperson. I built Productive Shop on the opposite principle: The Craft. I am a dedicated advocate for the "marketing craftsman," believing that technical excellence and a drive to win are the only sustainable competitive advantages in a digital-first economy. I’ve spent my career building "mission-ready" marketing teams that understand a fundamental truth: a company’s digital footprint is its reality. My academic background in Criminology, Justice, and Political Science from Toronto Metropolitan University (formerly Ryerson) gave me a unique lens into systemic risk and policy—a vantage point I now use to help companies in "old school" industries like Fintech, Cybersecurity, and GovTech modernize their presence and capture dominant market share. On the lookout for I act as a strategic advisor to companies ranging from Seed to Series B, helping them transition from early-stage obscurity to dominant market leaders. I work closely with institutional investors to ensure their portco valuations aren't just protected, but actively inflected by their go-to-market foundations. I’m a firm believer that a dominant search presence and smart advertising targeting are the bedrock of modern pipelines. I look for founders who are pushing the boundaries of what is possible in traditionally rigid industries. If you are a founder ready to stop "playing" at marketing and start building a world-class foundation that owns the market narrative, I want to be the person who helps you get there. When I'm not scaling SaaS pipelines or sharpening a brand's digital edge, you can find me on the slopes as an avid skier or at the range as a marksman—pursuits that, much like my work, require precision, discipline, and a high-performance mindset.

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