From Minecraft Wiki
Jump to: navigation, search





Partial (diffuses sky light)



Blast resistance





This block can be broken with any tool, but a sword is the quickest; however it still takes double damageGrid Shears.png




Yes (64)



First appearance

Beta 1.5



Data value

dec: 30 hex: 1E bin: 11110



Cobweb is a block which slows down movement.


Cobwebs can only be obtained by mining them using a tool with the silk touch enchantment. Otherwise, it will drop 1 piece of string.

Block Hardness Tool Breaking time (seconds)
Hand Wooden Stone Iron Diamond Golden Shears Sword

4 20 0.4 4

Natural generation[edit]

Cobwebs generate naturally in stronghold libraries and in abandoned mine shafts.


Redstone circuits[edit]

2 cobwebs delay for around a minute

Cobwebs can be used in redstone as a delay by using a dispenser or dropper to discharge an item into a tower of cobwebs above a pressure plate or hopper.


All mobs that move through cobwebs will slow down, with the exceptions of spiders and cave spiders. Mobs falling through cobwebs will take 13 seconds to move down by 1 block.

Moving into a cobweb limits the Player's movement abilities, as well. When you are "inside" the cobweb, you will move at a speed of about 15% of the normal walking speed. Additionally, jumping will vibrate the player akin to jumping in a 2-block-high space. Like water, cobwebs will prevent players falling into it from taking fall damage, meaning a fatal fall can be mitigated with cobwebs.

Along with affecting the mobs' mobility, cobwebs also provide a multitude of other effects:

  • Mobs can spawn inside of cobwebs as if they were air.
  • The slowing effect of the cobweb will increase if it is placed on ice.
  • Cobwebs will slow the time of a player breaking blocks, similar to when in water.
  • Players are unaffected by cobwebs when in a minecart except when the cobwebs are in the way of the cart.
  • A minecart with no players in it takes about 9 seconds to fall through a cobweb if a rail is placed directly under the cobweb, but if there is air between the cobweb and the rail, the minecart takes about 34 seconds to fall. Every extra cobweb added will give an additional 25 seconds of falling time.
  • Items thrown on a cobweb are slowed and will fall through it after about 24 seconds.
  • Items that fall through a cobweb will not merge with other items of the same type thrown on the ground.
  • A shot arrow will pass through cobwebs without being slowed down.
  • A falling block which falls or is shot into a cobweb will slow down and then be destroyed and become a resource after about 4 seconds. Primed TNT seems to be not affected by this phenomenon as it doesn't disappear and will eventually explode, destroying the cobweb.
  • Like leaves, cobwebs diffuse sky light.
  • Primed TNT can pass through Cobwebs without slowing down if they are shot through fast enough.



Notch originally planned for spiders to produce webs.[1]
Cobwebs were added to the terrain.png file some time during Classic, but had no block ID assigned.
1.5 Cobweb blocks were introduced, but did not occur in the world and could only be obtained with a third party mod or cheat.
At this point, before cobwebs occurred in the game, they would suffocate the player like solid blocks if entered.
1.8 New structures were introduced which included cobwebs: abandoned mine shafts, especially dense near their cave spider spawners, and strongholds, especially in the libraries.
Official release
1.2.1 12w06a Before this version, cobwebs did not completely absorb all the fall damage.
1.4.6 12w49a Cobwebs can be now obtained with the silk touch enchantment on shears.
Pocket Edition Alpha
0.8.0 build 6 Cobwebs were added to the creative inventory.
0.9.0 build 1 Cobwebs now spawn naturally in abandoned mine shafts.
Added smooth lighting to cobwebs.
Console Edition
TU5 Added cobwebs.


Issues relating to "Cobweb" are maintained on the issue tracker. Report issues there.


  • Ender pearls are "caught" by cobwebs, which makes them ideal for stopping players from teleporting over walls.
  • Signs and paintings can be placed on cobwebs.
  • In SMP, the particles given off when breaking a cobweb may slow down whilst falling, as they appear before the cobweb block disappears. This also seems to cause them not to fly outwards, but just drop directly downwards after the cobweb disappears. This phenomenon only seems to happen if there is a considerable amount of lag on the server.
  • Destroying a cobweb makes stone sounds.
  • While traveling down through a cobweb and attacking, it counts towards critical hits the same as jumping and attacking as the player falls.
  • When moved by a piston, or sticky piston, the cobweb will drop as a string.
  • When a cobweb is placed in water, it is destroyed and drops a single piece of string. This also happens if water touches them.
  • Cobwebs can be used in the Console Editions through the use of Creative mode. But it is just simply called "web".
  • Cobweb will partially stop blast damage if you and the TNT/Creeper/etc are in the cobweb.
  • Cobwebs can slow the movement of particle effects that come off players and mobs.
  • Zombies will not catch sun fire if they are caught in a Cobweb. This occurs regardless of which part of the Zombie is caught inside of it.


External links[edit]