Feeds

Search engines stink, and they're getting worse

An academic report finds them all sadly wanting

  • alert
  • submit to reddit

Internet Security Threat Report 2014

The proportion of information on the Internet that is indexed by search engines is declining, according to a recent study by Steve Lawrence and Lee Giles of the NEC Research Institute at Princeton, and reported in Nature. The engines do not index sites equally, new pages may remain unindexed for months, but worst of all, even the best engine only reaches 16 per cent of the Web. The survey was carried out in February. Furthermore, the situation is getting worse, since in December 1997 around 34 per cent of information was indexed. The problem is multifaceted. The Web has around 15 terabytes of data in some 800 million pages, plus 180 million images and is growing faster than the ability of the engines to search. The growth rate is about 3 million pages/day. There is apparently no coordination between search engine operators it seems, so that the cognoscenti could turn to a particular engine for a particular subject area. The dark side is of course that many pages that have made it to a search engine disappear without trace. So how well are the best-known engines doing? Dismally, is the answer. The best, according to Lawrence & Giles, is Northern Light, which covers a mere 16 per cent of the Web, just pipping Alta Vista's 15.5 percent (although that 0.5 per cent difference adds up to around 4 million unindexed pages). Microsoft can only manage 8.5 per cent, Yahoo 7.4 per cent, Excite 5.6 per cent, and Lycos is the dunce at 2.5 per cent. This should make people think about defaulting to using engines on portals. Of course enlightened searchers use meta-engines that use several engines and combine the results, but each has its inconveniences and idiosyncrasies we have found. The researchers found that 83 per cent of web sites have commercial content, with only a vociferous 1.5 per cent of sites being pornographic: they, at least, have found the secrets of tweaking their sites to get them indexed, it would appear. It looks as though archivists will not be out of a job for a long time, in view of this failure of the Web as a reliable and comprehensive online library. It reminds us of the persistent story that the French Bibliotheque Nationale used to store its books by size and colour in its old building. That's effectively what's happening on the Web: we don't know how much is unindexed, because it is hard to study the overlap between engines, but the odds are that half the information on the Web cannot be found with search engines at all. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Doctor Who's Flatline: Cool monsters, yes, but utterly limp subplots
We know what the Doctor does, stop going on about it already
Facebook, Apple: LADIES! Why not FREEZE your EGGS? It's on the company!
No biological clockwatching when you work in Silicon Valley
'Cowardly, venomous trolls' threatened with TWO-YEAR sentences for menacing posts
UK government: 'Taking a stand against a baying cyber-mob'
Happiness economics is bollocks. Oh, UK.gov just adopted it? Er ...
Opportunity doesn't knock; it costs us instead
Ex-US Navy fighter pilot MIT prof: Drones beat humans - I should know
'Missy' Cummings on UAVs, smartcars and dying from boredom
Sysadmin with EBOLA? Gartner's issued advice to debug your biz
Start hoarding cleaning supplies, analyst firm says, and assume your team will scatter
Zippy one-liners, broken promises: Doctor Who on the Orient Express
Series finally hits stride, but Clara's U-turn is baffling
Don't bother telling people if you lose their data, say Euro bods
You read that right – with the proviso that it's encrypted
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.