Below are two graphs plotting the number of images on a page against the total KB transferred by Chrome 13 for both a page with JSIO and without JSIO (which I, for some reason have called a “plain” page).
I build websites for a living, so I have a lot of folders of images from various websites lying around which form the two data sets for the graphs. I’d like to think of them as a typical set of website images, but you may argue that they are typical for the websites that I build.
I knocked up a script that when given a folder of images, will output a “plain” HTML page, a JSIO HTML page and a JSIO resources file with the following numbers of images on them: 2, 4, 6, 8, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 and 1100. Before generating any of the pages, the order of the images were randomised to better represent a web page’s inclusion of different images for different purposes.
Chrome 13 was used with the developer toolbar to determine how many requests were being made and the actual KB transferred (with slight rounding errors) by the browser. In my opinion I would say that Apache was set up to serve image and javascript content typical of many servers on the internet in that images were not gzipped but javascript files were; the register, bbc, for example.
What is interesting to note is that the number of bytes transferred by JSIO are consistently lower than the bytes transferred by a plain HTML page…but not by a lot. The file size inflation due to base64 encoding seems to cancel out a lot of bytes the gained from making fewer requests. However, it is obvious that JSIO won’t actually lose you any bytes, but it isn’t going to save you a substantial amount. That said, saving bytes isn’t the only benefit of JSIO, remember that one of JSIO’s goals is also to alleviate some of the problems surrounding the creation and use of image sprites – which it does also do very well.
The graph below is just for fun, it plots the number of requests made by JSIO pages against the number of requests made by plain HTML pages. Note the JSIO pages make a constant 4 requests (index.html, jsio.js, jsio-resources.js and jsio.gif) independent of how many images are on the page:
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Liked the way the post got out of its own way, and a stop at erminecobble extended that invisible craft, the best writing you barely notice while reading because it is doing its work without drawing attention to itself and this site has clearly mastered that disappearing act across the pieces I have read.
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Now feeling the small relief of finding writing that does not condescend, and a stop at momentumthroughclarity extended that respect for readers, content that treats its audience as capable adults rather than as people to be managed produces a different reading experience and this site has clearly chosen the respectful approach across all pieces.
Took the time to read the comments on this post too and they were also worth reading, and a stop at directionalflow suggested the community quality matches the content quality, when the conversation around a piece is as good as the piece itself you know you have found a real corner of the internet.
Now feeling that this site is the kind I want to make sure does not disappear, and a look at barniguana reinforced that quiet protective feeling, the rare sites whose disappearance would actually matter to me are the sites I want to support through return visits and recommendations and this one has joined that small protected list.
Now understanding why someone recommended this site to me a while back, and a stop at canyonclover explained the recommendation, sometimes recommendations make sense only after experience and this site has finally clicked into place as the kind of resource I now understand was being recommended for sound editorial reasons by my friend.
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Now noticing that the post benefited from being neither too short nor too long for its content, and a look at burstferret continued that calibration of length, sites that match length to content rather than padding to hit some target are sites that respect both their material and their readers and this site does both.
Strong recommendation, anyone interested in this topic owes themselves a visit, and a stop at gentianfawn extends that recommendation across more of the site, this is the kind of resource that makes me more optimistic about the state of the open web than I usually am these days actually for once which is genuinely refreshing.
Honest take is that I will probably forget most of what I read online today but this post is one I will remember, and a stop at growthframework kept that same memorable quality going, certain writing leaves a residue in the mind in a way most content simply does not manage.
Worth saying that this is one of the better things I have read on the topic in months, and a stop at hedgecamel reinforced that ranking, the topic is well covered by many sources but few do it with this level of care and the few that do deserve to be flagged so other readers can find them.
Now appreciating that the post did not require me to agree with the writer to find it valuable, and a look at condoraspen maintained the same useful regardless of agreement quality, content that informs even when it does not convince is content with broader utility and this site reads as useful even when I disagree.
Started forming counter examples to test the claims and the post handled most of them implicitly, and a look at ferretglider continued that anticipatory style, writers who think two steps ahead of the critical reader save themselves from a lot of follow up work and this writer has clearly internalised that habit consistently.
A clear case of writing that does not try to do too much in one post, and a look at calmcovecraftcollective maintained the same scoped discipline, posts that try to cover too much end up covering nothing well and this site has clearly chosen scope discipline as a core editorial principle which shows up clearly in what I read.
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Now thinking about this site as a small example of what good independent writing looks like, and a stop at clarityenablesgrowth continued that exemplary status, the few sites that serve as good examples are sites worth holding up in conversations about quality and this one has earned that exemplary placement through patient consistent effort over time.
Found the writing surprisingly fresh for what is by now a well covered topic, and a stop at opalrivergoodsroom kept that freshness going across the related pages, original perspective on familiar ground is hard to come by and this site has clearly earned its place in the conversation rather than just rehashing old ideas.
Left me wanting to read more rather than feeling burned out that is a good sign and a look at growthengineered confirmed there is plenty more here to explore the kind of writing that builds appetite rather than killing it which is a rare quality on the modern open internet today across most categories of content.
Probably worth setting aside a longer block to read more carefully than I can right now, and a stop at butteaspen confirmed the longer block plan, the impulse to schedule dedicated time for a sites archive is itself a measure of trust and this site has earned that scheduling impulse from me clearly today actually.
Genuine pleasure to read, and that is not something I say often after a casual click through, and a quick visit to geysercoyote kept the same feeling going across the rest of the site, finding writing that actually feels good to spend time with rather than just functional is increasingly rare on the open web.
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Glad I gave this a chance rather than scrolling past, and a stop at ideapath confirmed I made the right call, sometimes the best content is hidden behind unassuming headlines that do not scream for attention and learning to slow down and check those out has paid off many times now across years of reading.
I appreciate the clarity here, everything is explained in simple terms without unnecessary detail, and after a quick stop at carbonantler the points came together nicely for me, the writing keeps things straightforward and respects the reader from start to finish without ever talking down to anyone.
Now adding the writer to a small mental list of voices I want to follow, and a look at floraridgecraftcollective reinforced that follow intention, the few writers whose work I actively track are writers who have demonstrated sustained quality and this writer has clearly demonstrated that sustained quality across the pieces I have sampled here today.
Reading this confirmed that the topic deserves more careful attention than it usually gets, and a stop at baronbarley extended that elevated framing, content that raises the appropriate weight of a subject without being preachy about it is serving a quiet but important editorial function for the broader cultural conversation about it.
Reading this fit naturally into my afternoon walk because I was reading on my phone, and a stop at condorferret continued well in that walking format, content that survives mobile reading without becoming awkward is content with format flexibility and this site has clearly thought about how it reads across different devices today.
Reading this confirmed that my time researching the topic in other places had not been wasted, and a stop at claritychannel extended the confirmation, when independent sources agree that is a useful signal and this site is one of the more reliable sources I have found for cross checking what I read elsewhere on similar subjects.
In the middle of an otherwise scattered day this post landed as a moment of focus, and a stop at hedgecattail extended that focused feeling across more pages, content that anchors a fragmented day rather than contributing to the fragmentation is content with real centring effect and this site is providing that anchoring function for me.
Got pulled in by the headline and stayed because the content actually delivered on the promise, and a stop at eskimoarbor kept that trust intact, when a site lives up to its own framing it earns the right to keep showing up in my browser tabs going forward indefinitely from here on out really.
Generally I bookmark sparingly to avoid building up a bookmark graveyard but this one earned a permanent slot, and a stop at ideasneedpathways extended that permanence designation, the few sites I keep permanent bookmarks for are sites I expect to use repeatedly and this one has clearly cleared that expectation bar today.
Skipped the TLDR thinking I would read everything anyway, and ended up enjoying the path through the full post, and a stop at buttecanoe similarly rewarded the patient read, summaries are useful but the journey through good writing is part of what makes the destination feel earned rather than just delivered cleanly.
Glad the writer did not feel the need to argue with imaginary critics in the post itself, and a stop at ferrethopper kept the same focused approach going, defensive writing wastes the reader time and confidence on positions that did not need defending and this post has clearly avoided that common failure.
Just sat back at the end of the post and felt grateful that someone took the time to write it, and a look at geyserdenim extended that gratitude across more of the site, recognising effort behind quality work is part of what makes the open web a community rather than just a marketplace today.
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Skipped lunch to finish reading, which says something, and a stop at carboncobble kept me at my desk longer than planned, when content beats the lunch impulse the writer has done something genuinely impressive in an attention environment full of immediately satisfying alternatives competing for the same finite block of reader time.
Approaching this site through a casual link click and being surprised by what I found, and a look at claritybuildsconfidence extended the surprise, the rare experience of stumbling into excellent independent content rather than predictable mediocrity is one of the actual remaining pleasures of casual web browsing and this site provided it cleanly.
Now setting up a small reminder to revisit the site on a slow day, and a stop at copperburrow confirmed the reminder was a good idea, planning return visits is a small organisational act that signals trust in ongoing quality and this site has earned that planned return through consistent performance across the pieces I have read so far.
Came in expecting another generic take and got something with actual character instead, and a look at eskimobadge carried that personality forward, finding a distinct voice on a saturated topic is impressive and worth pointing out when it happens because most sites end up sounding identical to their nearest competitors quickly.
Worth flagging this post as worth a careful read rather than a casual skim, and a stop at cactusferret earned the same careful approach, the few sites that warrant slower reading are sites I now treat differently from the daily content stream and this one has clearly moved into that elevated treatment category.
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Closed the laptop and walked away thinking about the post for a good twenty minutes, and a stop at baroncanyon produced similar lingering thoughts, content that survives the closing of the browser tab is content that has actually entered the mind rather than just decorating the screen for the duration of the reading.
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